trait.Float.html 150 KB

123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159160161162163164165166167168169170171172173174175176177178179180181182183184185186187188189190191192193194195196197198199200201202203204205206207208209210211212213214215216217218219220221222223224225226227228229230231232233234235236237238239240241242243244245246247248249250251252253254255256257258259260261262263264265266267268269270271272273274275276277278279280281282283284285286287288289290291292293294295296297298299300301302303304305306307308309310311312313314315316317318319320321322323324325326327328329330331332333334335336337338339340341342343344345346347348349350351352353354355356357358359360361362363364365366367368369370371372373374375376377378379380381382383384385386387388389390391392393394395396397398399400401402403404405406407408409410411412413414415416417418419420421422423424425426427428429430431432433434435436437438439440441442443444445446447448449450451452453454455456457458459460461462463464465466467468469470471472473474475476477478479480481482483484485486487488489490491492493494495496497498499500501502503504505506507508509510511512513514515516517518519520521522523524525526527528529530531532533534535536537538539540541542543544545546547548549550551552553554555556557558559560561562563564565566567568569570571572573574575576577578579580581582583584585586587588589590591592593594595596597598599600601602603604605606607608609610611612613614615616617618619620621622623624625626627628629630631632633634635636637638639640641642643644645646647648649650651652653654655656657658659660661662663664665666667668669670671672673674675676677678679680681682683684685686687688689690691692693694695696697698699700701702703704705706707708709710711712713714715716717718719720721722723724725726727728729730731732733734735736737738739740741742743744745746747748749750751752753754755756757758759760761762763764765766767768769770771772773774775776777778779780781782783784785786787788789790791792793794795796797798799800801802803804805
  1. <!DOCTYPE html><html lang="en"><head><meta charset="utf-8"><meta name="viewport" content="width=device-width, initial-scale=1.0"><meta name="generator" content="rustdoc"><meta name="description" content="API documentation for the Rust `Float` trait in crate `num`."><meta name="keywords" content="rust, rustlang, rust-lang, Float"><title>num::Float - Rust</title><link rel="stylesheet" type="text/css" href="../normalize.css"><link rel="stylesheet" type="text/css" href="../rustdoc.css" id="mainThemeStyle"><link rel="stylesheet" type="text/css" href="../dark.css"><link rel="stylesheet" type="text/css" href="../light.css" id="themeStyle"><script src="../storage.js"></script></head><body class="rustdoc trait"><!--[if lte IE 8]><div class="warning">This old browser is unsupported and will most likely display funky things.</div><![endif]--><nav class="sidebar"><div class="sidebar-menu">&#9776;</div><p class='location'>Trait Float</p><div class="sidebar-elems"><div class="block items"><a class="sidebar-title" href="#required-methods">Required Methods</a><div class="sidebar-links"><a href="#tymethod.nan">nan</a><a href="#tymethod.infinity">infinity</a><a href="#tymethod.neg_infinity">neg_infinity</a><a href="#tymethod.neg_zero">neg_zero</a><a href="#tymethod.min_value">min_value</a><a href="#tymethod.min_positive_value">min_positive_value</a><a href="#tymethod.max_value">max_value</a><a href="#tymethod.is_nan">is_nan</a><a href="#tymethod.is_infinite">is_infinite</a><a href="#tymethod.is_finite">is_finite</a><a href="#tymethod.is_normal">is_normal</a><a href="#tymethod.classify">classify</a><a href="#tymethod.floor">floor</a><a href="#tymethod.ceil">ceil</a><a href="#tymethod.round">round</a><a href="#tymethod.trunc">trunc</a><a href="#tymethod.fract">fract</a><a href="#tymethod.abs">abs</a><a href="#tymethod.signum">signum</a><a href="#tymethod.is_sign_positive">is_sign_positive</a><a href="#tymethod.is_sign_negative">is_sign_negative</a><a href="#tymethod.mul_add">mul_add</a><a href="#tymethod.recip">recip</a><a href="#tymethod.powi">powi</a><a href="#tymethod.powf">powf</a><a href="#tymethod.sqrt">sqrt</a><a href="#tymethod.exp">exp</a><a href="#tymethod.exp2">exp2</a><a href="#tymethod.ln">ln</a><a href="#tymethod.log">log</a><a href="#tymethod.log2">log2</a><a href="#tymethod.log10">log10</a><a href="#tymethod.max">max</a><a href="#tymethod.min">min</a><a href="#tymethod.abs_sub">abs_sub</a><a href="#tymethod.cbrt">cbrt</a><a href="#tymethod.hypot">hypot</a><a href="#tymethod.sin">sin</a><a href="#tymethod.cos">cos</a><a href="#tymethod.tan">tan</a><a href="#tymethod.asin">asin</a><a href="#tymethod.acos">acos</a><a href="#tymethod.atan">atan</a><a href="#tymethod.atan2">atan2</a><a href="#tymethod.sin_cos">sin_cos</a><a href="#tymethod.exp_m1">exp_m1</a><a href="#tymethod.ln_1p">ln_1p</a><a href="#tymethod.sinh">sinh</a><a href="#tymethod.cosh">cosh</a><a href="#tymethod.tanh">tanh</a><a href="#tymethod.asinh">asinh</a><a href="#tymethod.acosh">acosh</a><a href="#tymethod.atanh">atanh</a><a href="#tymethod.integer_decode">integer_decode</a></div><a class="sidebar-title" href="#provided-methods">Provided Methods</a><div class="sidebar-links"><a href="#method.epsilon">epsilon</a><a href="#method.to_degrees">to_degrees</a><a href="#method.to_radians">to_radians</a></div><a class="sidebar-title" href="#foreign-impls">Implementations on Foreign Types</a><div class="sidebar-links"><a href="#impl-Float">f32</a><a href="#impl-Float">f64</a></div><a class="sidebar-title" href="#implementors">Implementors</a></div><p class='location'><a href='index.html'>num</a></p><script>window.sidebarCurrent = {name: 'Float', ty: 'trait', relpath: ''};</script><script defer src="sidebar-items.js"></script></div></nav><div class="theme-picker"><button id="theme-picker" aria-label="Pick another theme!"><img src="../brush.svg" width="18" alt="Pick another theme!"></button><div id="theme-choices"></div></div><script src="../theme.js"></script><nav class="sub"><form class="search-form js-only"><div class="search-container"><input class="search-input" name="search" autocomplete="off" placeholder="Click or press ‘S’ to search, ‘?’ for more options…" type="search"><a id="settings-menu" href="../settings.html"><img src="../wheel.svg" width="18" alt="Change settings"></a></div></form></nav><section id="main" class="content"><h1 class='fqn'><span class='in-band'>Trait <a href='index.html'>num</a>::<wbr><a class="trait" href=''>Float</a></span><span class='out-of-band'><span id='render-detail'><a id="toggle-all-docs" href="javascript:void(0)" title="collapse all docs">[<span class='inner'>&#x2212;</span>]</a></span><a class='srclink' href='../src/num_traits/float.rs.html#890-1801' title='goto source code'>[src]</a></span></h1><div class="docblock type-decl"><pre class='rust trait'>pub trait Float: <a class="trait" href="../num/traits/cast/trait.NumCast.html" title="trait num::traits::cast::NumCast">NumCast</a> + <a class="trait" href="../num/traits/trait.Num.html" title="trait num::traits::Num">Num</a> + <a class="trait" href="https://doc.rust-lang.org/nightly/core/marker/trait.Copy.html" title="trait core::marker::Copy">Copy</a> + <a class="trait" href="https://doc.rust-lang.org/nightly/core/ops/arith/trait.Neg.html" title="trait core::ops::arith::Neg">Neg</a>&lt;Output = Self&gt; + <a class="trait" href="https://doc.rust-lang.org/nightly/core/cmp/trait.PartialOrd.html" title="trait core::cmp::PartialOrd">PartialOrd</a>&lt;Self&gt; {
  2. fn <a href='#tymethod.nan' class='fnname'>nan</a>() -&gt; Self;
  3. <div class='item-spacer'></div> fn <a href='#tymethod.infinity' class='fnname'>infinity</a>() -&gt; Self;
  4. <div class='item-spacer'></div> fn <a href='#tymethod.neg_infinity' class='fnname'>neg_infinity</a>() -&gt; Self;
  5. <div class='item-spacer'></div> fn <a href='#tymethod.neg_zero' class='fnname'>neg_zero</a>() -&gt; Self;
  6. <div class='item-spacer'></div> fn <a href='#tymethod.min_value' class='fnname'>min_value</a>() -&gt; Self;
  7. <div class='item-spacer'></div> fn <a href='#tymethod.min_positive_value' class='fnname'>min_positive_value</a>() -&gt; Self;
  8. <div class='item-spacer'></div> fn <a href='#tymethod.max_value' class='fnname'>max_value</a>() -&gt; Self;
  9. <div class='item-spacer'></div> fn <a href='#tymethod.is_nan' class='fnname'>is_nan</a>(self) -&gt; <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.bool.html">bool</a>;
  10. <div class='item-spacer'></div> fn <a href='#tymethod.is_infinite' class='fnname'>is_infinite</a>(self) -&gt; <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.bool.html">bool</a>;
  11. <div class='item-spacer'></div> fn <a href='#tymethod.is_finite' class='fnname'>is_finite</a>(self) -&gt; <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.bool.html">bool</a>;
  12. <div class='item-spacer'></div> fn <a href='#tymethod.is_normal' class='fnname'>is_normal</a>(self) -&gt; <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.bool.html">bool</a>;
  13. <div class='item-spacer'></div> fn <a href='#tymethod.classify' class='fnname'>classify</a>(self) -&gt; <a class="enum" href="https://doc.rust-lang.org/nightly/core/num/enum.FpCategory.html" title="enum core::num::FpCategory">FpCategory</a>;
  14. <div class='item-spacer'></div> fn <a href='#tymethod.floor' class='fnname'>floor</a>(self) -&gt; Self;
  15. <div class='item-spacer'></div> fn <a href='#tymethod.ceil' class='fnname'>ceil</a>(self) -&gt; Self;
  16. <div class='item-spacer'></div> fn <a href='#tymethod.round' class='fnname'>round</a>(self) -&gt; Self;
  17. <div class='item-spacer'></div> fn <a href='#tymethod.trunc' class='fnname'>trunc</a>(self) -&gt; Self;
  18. <div class='item-spacer'></div> fn <a href='#tymethod.fract' class='fnname'>fract</a>(self) -&gt; Self;
  19. <div class='item-spacer'></div> fn <a href='#tymethod.abs' class='fnname'>abs</a>(self) -&gt; Self;
  20. <div class='item-spacer'></div> fn <a href='#tymethod.signum' class='fnname'>signum</a>(self) -&gt; Self;
  21. <div class='item-spacer'></div> fn <a href='#tymethod.is_sign_positive' class='fnname'>is_sign_positive</a>(self) -&gt; <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.bool.html">bool</a>;
  22. <div class='item-spacer'></div> fn <a href='#tymethod.is_sign_negative' class='fnname'>is_sign_negative</a>(self) -&gt; <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.bool.html">bool</a>;
  23. <div class='item-spacer'></div> fn <a href='#tymethod.mul_add' class='fnname'>mul_add</a>(self, a: Self, b: Self) -&gt; Self;
  24. <div class='item-spacer'></div> fn <a href='#tymethod.recip' class='fnname'>recip</a>(self) -&gt; Self;
  25. <div class='item-spacer'></div> fn <a href='#tymethod.powi' class='fnname'>powi</a>(self, n: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.i32.html">i32</a>) -&gt; Self;
  26. <div class='item-spacer'></div> fn <a href='#tymethod.powf' class='fnname'>powf</a>(self, n: Self) -&gt; Self;
  27. <div class='item-spacer'></div> fn <a href='#tymethod.sqrt' class='fnname'>sqrt</a>(self) -&gt; Self;
  28. <div class='item-spacer'></div> fn <a href='#tymethod.exp' class='fnname'>exp</a>(self) -&gt; Self;
  29. <div class='item-spacer'></div> fn <a href='#tymethod.exp2' class='fnname'>exp2</a>(self) -&gt; Self;
  30. <div class='item-spacer'></div> fn <a href='#tymethod.ln' class='fnname'>ln</a>(self) -&gt; Self;
  31. <div class='item-spacer'></div> fn <a href='#tymethod.log' class='fnname'>log</a>(self, base: Self) -&gt; Self;
  32. <div class='item-spacer'></div> fn <a href='#tymethod.log2' class='fnname'>log2</a>(self) -&gt; Self;
  33. <div class='item-spacer'></div> fn <a href='#tymethod.log10' class='fnname'>log10</a>(self) -&gt; Self;
  34. <div class='item-spacer'></div> fn <a href='#tymethod.max' class='fnname'>max</a>(self, other: Self) -&gt; Self;
  35. <div class='item-spacer'></div> fn <a href='#tymethod.min' class='fnname'>min</a>(self, other: Self) -&gt; Self;
  36. <div class='item-spacer'></div> fn <a href='#tymethod.abs_sub' class='fnname'>abs_sub</a>(self, other: Self) -&gt; Self;
  37. <div class='item-spacer'></div> fn <a href='#tymethod.cbrt' class='fnname'>cbrt</a>(self) -&gt; Self;
  38. <div class='item-spacer'></div> fn <a href='#tymethod.hypot' class='fnname'>hypot</a>(self, other: Self) -&gt; Self;
  39. <div class='item-spacer'></div> fn <a href='#tymethod.sin' class='fnname'>sin</a>(self) -&gt; Self;
  40. <div class='item-spacer'></div> fn <a href='#tymethod.cos' class='fnname'>cos</a>(self) -&gt; Self;
  41. <div class='item-spacer'></div> fn <a href='#tymethod.tan' class='fnname'>tan</a>(self) -&gt; Self;
  42. <div class='item-spacer'></div> fn <a href='#tymethod.asin' class='fnname'>asin</a>(self) -&gt; Self;
  43. <div class='item-spacer'></div> fn <a href='#tymethod.acos' class='fnname'>acos</a>(self) -&gt; Self;
  44. <div class='item-spacer'></div> fn <a href='#tymethod.atan' class='fnname'>atan</a>(self) -&gt; Self;
  45. <div class='item-spacer'></div> fn <a href='#tymethod.atan2' class='fnname'>atan2</a>(self, other: Self) -&gt; Self;
  46. <div class='item-spacer'></div> fn <a href='#tymethod.sin_cos' class='fnname'>sin_cos</a>(self) -&gt; <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.tuple.html">(</a>Self, Self<a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.tuple.html">)</a>;
  47. <div class='item-spacer'></div> fn <a href='#tymethod.exp_m1' class='fnname'>exp_m1</a>(self) -&gt; Self;
  48. <div class='item-spacer'></div> fn <a href='#tymethod.ln_1p' class='fnname'>ln_1p</a>(self) -&gt; Self;
  49. <div class='item-spacer'></div> fn <a href='#tymethod.sinh' class='fnname'>sinh</a>(self) -&gt; Self;
  50. <div class='item-spacer'></div> fn <a href='#tymethod.cosh' class='fnname'>cosh</a>(self) -&gt; Self;
  51. <div class='item-spacer'></div> fn <a href='#tymethod.tanh' class='fnname'>tanh</a>(self) -&gt; Self;
  52. <div class='item-spacer'></div> fn <a href='#tymethod.asinh' class='fnname'>asinh</a>(self) -&gt; Self;
  53. <div class='item-spacer'></div> fn <a href='#tymethod.acosh' class='fnname'>acosh</a>(self) -&gt; Self;
  54. <div class='item-spacer'></div> fn <a href='#tymethod.atanh' class='fnname'>atanh</a>(self) -&gt; Self;
  55. <div class='item-spacer'></div> fn <a href='#tymethod.integer_decode' class='fnname'>integer_decode</a>(self) -&gt; <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.tuple.html">(</a><a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.u64.html">u64</a>, <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.i16.html">i16</a>, <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.i8.html">i8</a><a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.tuple.html">)</a>;
  56. fn <a href='#method.epsilon' class='fnname'>epsilon</a>() -&gt; Self { ... }
  57. <div class='item-spacer'></div> fn <a href='#method.to_degrees' class='fnname'>to_degrees</a>(self) -&gt; Self { ... }
  58. <div class='item-spacer'></div> fn <a href='#method.to_radians' class='fnname'>to_radians</a>(self) -&gt; Self { ... }
  59. }</pre></div><div class='docblock'><p>Generic trait for floating point numbers</p>
  60. <p>This trait is only available with the <code>std</code> feature.</p>
  61. </div>
  62. <h2 id='required-methods' class='small-section-header'>
  63. Required Methods<a href='#required-methods' class='anchor'></a>
  64. </h2>
  65. <div class='methods'>
  66. <h3 id='tymethod.nan' class='method'><span id='nan.v' class='invisible'><code>fn <a href='#tymethod.nan' class='fnname'>nan</a>() -&gt; Self</code></span></h3><div class='docblock'><p>Returns the <code>NaN</code> value.</p>
  67. <pre class="rust rust-example-rendered">
  68. <span class="kw">use</span> <span class="ident">num_traits</span>::<span class="ident">Float</span>;
  69. <span class="kw">let</span> <span class="ident">nan</span>: <span class="ident">f32</span> <span class="op">=</span> <span class="ident">Float</span>::<span class="ident">nan</span>();
  70. <span class="macro">assert</span><span class="macro">!</span>(<span class="ident">nan</span>.<span class="ident">is_nan</span>());</pre>
  71. </div><h3 id='tymethod.infinity' class='method'><span id='infinity.v' class='invisible'><code>fn <a href='#tymethod.infinity' class='fnname'>infinity</a>() -&gt; Self</code></span></h3><div class='docblock'><p>Returns the infinite value.</p>
  72. <pre class="rust rust-example-rendered">
  73. <span class="kw">use</span> <span class="ident">num_traits</span>::<span class="ident">Float</span>;
  74. <span class="kw">use</span> <span class="ident">std</span>::<span class="ident">f32</span>;
  75. <span class="kw">let</span> <span class="ident">infinity</span>: <span class="ident">f32</span> <span class="op">=</span> <span class="ident">Float</span>::<span class="ident">infinity</span>();
  76. <span class="macro">assert</span><span class="macro">!</span>(<span class="ident">infinity</span>.<span class="ident">is_infinite</span>());
  77. <span class="macro">assert</span><span class="macro">!</span>(<span class="op">!</span><span class="ident">infinity</span>.<span class="ident">is_finite</span>());
  78. <span class="macro">assert</span><span class="macro">!</span>(<span class="ident">infinity</span> <span class="op">&gt;</span> <span class="ident">f32</span>::<span class="ident">MAX</span>);</pre>
  79. </div><h3 id='tymethod.neg_infinity' class='method'><span id='neg_infinity.v' class='invisible'><code>fn <a href='#tymethod.neg_infinity' class='fnname'>neg_infinity</a>() -&gt; Self</code></span></h3><div class='docblock'><p>Returns the negative infinite value.</p>
  80. <pre class="rust rust-example-rendered">
  81. <span class="kw">use</span> <span class="ident">num_traits</span>::<span class="ident">Float</span>;
  82. <span class="kw">use</span> <span class="ident">std</span>::<span class="ident">f32</span>;
  83. <span class="kw">let</span> <span class="ident">neg_infinity</span>: <span class="ident">f32</span> <span class="op">=</span> <span class="ident">Float</span>::<span class="ident">neg_infinity</span>();
  84. <span class="macro">assert</span><span class="macro">!</span>(<span class="ident">neg_infinity</span>.<span class="ident">is_infinite</span>());
  85. <span class="macro">assert</span><span class="macro">!</span>(<span class="op">!</span><span class="ident">neg_infinity</span>.<span class="ident">is_finite</span>());
  86. <span class="macro">assert</span><span class="macro">!</span>(<span class="ident">neg_infinity</span> <span class="op">&lt;</span> <span class="ident">f32</span>::<span class="ident">MIN</span>);</pre>
  87. </div><h3 id='tymethod.neg_zero' class='method'><span id='neg_zero.v' class='invisible'><code>fn <a href='#tymethod.neg_zero' class='fnname'>neg_zero</a>() -&gt; Self</code></span></h3><div class='docblock'><p>Returns <code>-0.0</code>.</p>
  88. <pre class="rust rust-example-rendered">
  89. <span class="kw">use</span> <span class="ident">num_traits</span>::{<span class="ident">Zero</span>, <span class="ident">Float</span>};
  90. <span class="kw">let</span> <span class="ident">inf</span>: <span class="ident">f32</span> <span class="op">=</span> <span class="ident">Float</span>::<span class="ident">infinity</span>();
  91. <span class="kw">let</span> <span class="ident">zero</span>: <span class="ident">f32</span> <span class="op">=</span> <span class="ident">Zero</span>::<span class="ident">zero</span>();
  92. <span class="kw">let</span> <span class="ident">neg_zero</span>: <span class="ident">f32</span> <span class="op">=</span> <span class="ident">Float</span>::<span class="ident">neg_zero</span>();
  93. <span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">zero</span>, <span class="ident">neg_zero</span>);
  94. <span class="macro">assert_eq</span><span class="macro">!</span>(<span class="number">7.0f32</span><span class="op">/</span><span class="ident">inf</span>, <span class="ident">zero</span>);
  95. <span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">zero</span> <span class="op">*</span> <span class="number">10.0</span>, <span class="ident">zero</span>);</pre>
  96. </div><h3 id='tymethod.min_value' class='method'><span id='min_value.v' class='invisible'><code>fn <a href='#tymethod.min_value' class='fnname'>min_value</a>() -&gt; Self</code></span></h3><div class='docblock'><p>Returns the smallest finite value that this type can represent.</p>
  97. <pre class="rust rust-example-rendered">
  98. <span class="kw">use</span> <span class="ident">num_traits</span>::<span class="ident">Float</span>;
  99. <span class="kw">use</span> <span class="ident">std</span>::<span class="ident">f64</span>;
  100. <span class="kw">let</span> <span class="ident">x</span>: <span class="ident">f64</span> <span class="op">=</span> <span class="ident">Float</span>::<span class="ident">min_value</span>();
  101. <span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">x</span>, <span class="ident">f64</span>::<span class="ident">MIN</span>);</pre>
  102. </div><h3 id='tymethod.min_positive_value' class='method'><span id='min_positive_value.v' class='invisible'><code>fn <a href='#tymethod.min_positive_value' class='fnname'>min_positive_value</a>() -&gt; Self</code></span></h3><div class='docblock'><p>Returns the smallest positive, normalized value that this type can represent.</p>
  103. <pre class="rust rust-example-rendered">
  104. <span class="kw">use</span> <span class="ident">num_traits</span>::<span class="ident">Float</span>;
  105. <span class="kw">use</span> <span class="ident">std</span>::<span class="ident">f64</span>;
  106. <span class="kw">let</span> <span class="ident">x</span>: <span class="ident">f64</span> <span class="op">=</span> <span class="ident">Float</span>::<span class="ident">min_positive_value</span>();
  107. <span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">x</span>, <span class="ident">f64</span>::<span class="ident">MIN_POSITIVE</span>);</pre>
  108. </div><h3 id='tymethod.max_value' class='method'><span id='max_value.v' class='invisible'><code>fn <a href='#tymethod.max_value' class='fnname'>max_value</a>() -&gt; Self</code></span></h3><div class='docblock'><p>Returns the largest finite value that this type can represent.</p>
  109. <pre class="rust rust-example-rendered">
  110. <span class="kw">use</span> <span class="ident">num_traits</span>::<span class="ident">Float</span>;
  111. <span class="kw">use</span> <span class="ident">std</span>::<span class="ident">f64</span>;
  112. <span class="kw">let</span> <span class="ident">x</span>: <span class="ident">f64</span> <span class="op">=</span> <span class="ident">Float</span>::<span class="ident">max_value</span>();
  113. <span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">x</span>, <span class="ident">f64</span>::<span class="ident">MAX</span>);</pre>
  114. </div><h3 id='tymethod.is_nan' class='method'><span id='is_nan.v' class='invisible'><code>fn <a href='#tymethod.is_nan' class='fnname'>is_nan</a>(self) -&gt; <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.bool.html">bool</a></code></span></h3><div class='docblock'><p>Returns <code>true</code> if this value is <code>NaN</code> and false otherwise.</p>
  115. <pre class="rust rust-example-rendered">
  116. <span class="kw">use</span> <span class="ident">num_traits</span>::<span class="ident">Float</span>;
  117. <span class="kw">use</span> <span class="ident">std</span>::<span class="ident">f64</span>;
  118. <span class="kw">let</span> <span class="ident">nan</span> <span class="op">=</span> <span class="ident">f64</span>::<span class="ident">NAN</span>;
  119. <span class="kw">let</span> <span class="ident">f</span> <span class="op">=</span> <span class="number">7.0</span>;
  120. <span class="macro">assert</span><span class="macro">!</span>(<span class="ident">nan</span>.<span class="ident">is_nan</span>());
  121. <span class="macro">assert</span><span class="macro">!</span>(<span class="op">!</span><span class="ident">f</span>.<span class="ident">is_nan</span>());</pre>
  122. </div><h3 id='tymethod.is_infinite' class='method'><span id='is_infinite.v' class='invisible'><code>fn <a href='#tymethod.is_infinite' class='fnname'>is_infinite</a>(self) -&gt; <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.bool.html">bool</a></code></span></h3><div class='docblock'><p>Returns <code>true</code> if this value is positive infinity or negative infinity and
  123. false otherwise.</p>
  124. <pre class="rust rust-example-rendered">
  125. <span class="kw">use</span> <span class="ident">num_traits</span>::<span class="ident">Float</span>;
  126. <span class="kw">use</span> <span class="ident">std</span>::<span class="ident">f32</span>;
  127. <span class="kw">let</span> <span class="ident">f</span> <span class="op">=</span> <span class="number">7.0f32</span>;
  128. <span class="kw">let</span> <span class="ident">inf</span>: <span class="ident">f32</span> <span class="op">=</span> <span class="ident">Float</span>::<span class="ident">infinity</span>();
  129. <span class="kw">let</span> <span class="ident">neg_inf</span>: <span class="ident">f32</span> <span class="op">=</span> <span class="ident">Float</span>::<span class="ident">neg_infinity</span>();
  130. <span class="kw">let</span> <span class="ident">nan</span>: <span class="ident">f32</span> <span class="op">=</span> <span class="ident">f32</span>::<span class="ident">NAN</span>;
  131. <span class="macro">assert</span><span class="macro">!</span>(<span class="op">!</span><span class="ident">f</span>.<span class="ident">is_infinite</span>());
  132. <span class="macro">assert</span><span class="macro">!</span>(<span class="op">!</span><span class="ident">nan</span>.<span class="ident">is_infinite</span>());
  133. <span class="macro">assert</span><span class="macro">!</span>(<span class="ident">inf</span>.<span class="ident">is_infinite</span>());
  134. <span class="macro">assert</span><span class="macro">!</span>(<span class="ident">neg_inf</span>.<span class="ident">is_infinite</span>());</pre>
  135. </div><h3 id='tymethod.is_finite' class='method'><span id='is_finite.v' class='invisible'><code>fn <a href='#tymethod.is_finite' class='fnname'>is_finite</a>(self) -&gt; <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.bool.html">bool</a></code></span></h3><div class='docblock'><p>Returns <code>true</code> if this number is neither infinite nor <code>NaN</code>.</p>
  136. <pre class="rust rust-example-rendered">
  137. <span class="kw">use</span> <span class="ident">num_traits</span>::<span class="ident">Float</span>;
  138. <span class="kw">use</span> <span class="ident">std</span>::<span class="ident">f32</span>;
  139. <span class="kw">let</span> <span class="ident">f</span> <span class="op">=</span> <span class="number">7.0f32</span>;
  140. <span class="kw">let</span> <span class="ident">inf</span>: <span class="ident">f32</span> <span class="op">=</span> <span class="ident">Float</span>::<span class="ident">infinity</span>();
  141. <span class="kw">let</span> <span class="ident">neg_inf</span>: <span class="ident">f32</span> <span class="op">=</span> <span class="ident">Float</span>::<span class="ident">neg_infinity</span>();
  142. <span class="kw">let</span> <span class="ident">nan</span>: <span class="ident">f32</span> <span class="op">=</span> <span class="ident">f32</span>::<span class="ident">NAN</span>;
  143. <span class="macro">assert</span><span class="macro">!</span>(<span class="ident">f</span>.<span class="ident">is_finite</span>());
  144. <span class="macro">assert</span><span class="macro">!</span>(<span class="op">!</span><span class="ident">nan</span>.<span class="ident">is_finite</span>());
  145. <span class="macro">assert</span><span class="macro">!</span>(<span class="op">!</span><span class="ident">inf</span>.<span class="ident">is_finite</span>());
  146. <span class="macro">assert</span><span class="macro">!</span>(<span class="op">!</span><span class="ident">neg_inf</span>.<span class="ident">is_finite</span>());</pre>
  147. </div><h3 id='tymethod.is_normal' class='method'><span id='is_normal.v' class='invisible'><code>fn <a href='#tymethod.is_normal' class='fnname'>is_normal</a>(self) -&gt; <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.bool.html">bool</a></code></span></h3><div class='docblock'><p>Returns <code>true</code> if the number is neither zero, infinite,
  148. <a href="http://en.wikipedia.org/wiki/Denormal_number">subnormal</a>, or <code>NaN</code>.</p>
  149. <pre class="rust rust-example-rendered">
  150. <span class="kw">use</span> <span class="ident">num_traits</span>::<span class="ident">Float</span>;
  151. <span class="kw">use</span> <span class="ident">std</span>::<span class="ident">f32</span>;
  152. <span class="kw">let</span> <span class="ident">min</span> <span class="op">=</span> <span class="ident">f32</span>::<span class="ident">MIN_POSITIVE</span>; <span class="comment">// 1.17549435e-38f32</span>
  153. <span class="kw">let</span> <span class="ident">max</span> <span class="op">=</span> <span class="ident">f32</span>::<span class="ident">MAX</span>;
  154. <span class="kw">let</span> <span class="ident">lower_than_min</span> <span class="op">=</span> <span class="number">1.0e-40_f32</span>;
  155. <span class="kw">let</span> <span class="ident">zero</span> <span class="op">=</span> <span class="number">0.0f32</span>;
  156. <span class="macro">assert</span><span class="macro">!</span>(<span class="ident">min</span>.<span class="ident">is_normal</span>());
  157. <span class="macro">assert</span><span class="macro">!</span>(<span class="ident">max</span>.<span class="ident">is_normal</span>());
  158. <span class="macro">assert</span><span class="macro">!</span>(<span class="op">!</span><span class="ident">zero</span>.<span class="ident">is_normal</span>());
  159. <span class="macro">assert</span><span class="macro">!</span>(<span class="op">!</span><span class="ident">f32</span>::<span class="ident">NAN</span>.<span class="ident">is_normal</span>());
  160. <span class="macro">assert</span><span class="macro">!</span>(<span class="op">!</span><span class="ident">f32</span>::<span class="ident">INFINITY</span>.<span class="ident">is_normal</span>());
  161. <span class="comment">// Values between `0` and `min` are Subnormal.</span>
  162. <span class="macro">assert</span><span class="macro">!</span>(<span class="op">!</span><span class="ident">lower_than_min</span>.<span class="ident">is_normal</span>());</pre>
  163. </div><h3 id='tymethod.classify' class='method'><span id='classify.v' class='invisible'><code>fn <a href='#tymethod.classify' class='fnname'>classify</a>(self) -&gt; <a class="enum" href="https://doc.rust-lang.org/nightly/core/num/enum.FpCategory.html" title="enum core::num::FpCategory">FpCategory</a></code></span></h3><div class='docblock'><p>Returns the floating point category of the number. If only one property
  164. is going to be tested, it is generally faster to use the specific
  165. predicate instead.</p>
  166. <pre class="rust rust-example-rendered">
  167. <span class="kw">use</span> <span class="ident">num_traits</span>::<span class="ident">Float</span>;
  168. <span class="kw">use</span> <span class="ident">std</span>::<span class="ident">num</span>::<span class="ident">FpCategory</span>;
  169. <span class="kw">use</span> <span class="ident">std</span>::<span class="ident">f32</span>;
  170. <span class="kw">let</span> <span class="ident">num</span> <span class="op">=</span> <span class="number">12.4f32</span>;
  171. <span class="kw">let</span> <span class="ident">inf</span> <span class="op">=</span> <span class="ident">f32</span>::<span class="ident">INFINITY</span>;
  172. <span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">num</span>.<span class="ident">classify</span>(), <span class="ident">FpCategory</span>::<span class="ident">Normal</span>);
  173. <span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">inf</span>.<span class="ident">classify</span>(), <span class="ident">FpCategory</span>::<span class="ident">Infinite</span>);</pre>
  174. </div><h3 id='tymethod.floor' class='method'><span id='floor.v' class='invisible'><code>fn <a href='#tymethod.floor' class='fnname'>floor</a>(self) -&gt; Self</code></span></h3><div class='docblock'><p>Returns the largest integer less than or equal to a number.</p>
  175. <pre class="rust rust-example-rendered">
  176. <span class="kw">use</span> <span class="ident">num_traits</span>::<span class="ident">Float</span>;
  177. <span class="kw">let</span> <span class="ident">f</span> <span class="op">=</span> <span class="number">3.99</span>;
  178. <span class="kw">let</span> <span class="ident">g</span> <span class="op">=</span> <span class="number">3.0</span>;
  179. <span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">f</span>.<span class="ident">floor</span>(), <span class="number">3.0</span>);
  180. <span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">g</span>.<span class="ident">floor</span>(), <span class="number">3.0</span>);</pre>
  181. </div><h3 id='tymethod.ceil' class='method'><span id='ceil.v' class='invisible'><code>fn <a href='#tymethod.ceil' class='fnname'>ceil</a>(self) -&gt; Self</code></span></h3><div class='docblock'><p>Returns the smallest integer greater than or equal to a number.</p>
  182. <pre class="rust rust-example-rendered">
  183. <span class="kw">use</span> <span class="ident">num_traits</span>::<span class="ident">Float</span>;
  184. <span class="kw">let</span> <span class="ident">f</span> <span class="op">=</span> <span class="number">3.01</span>;
  185. <span class="kw">let</span> <span class="ident">g</span> <span class="op">=</span> <span class="number">4.0</span>;
  186. <span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">f</span>.<span class="ident">ceil</span>(), <span class="number">4.0</span>);
  187. <span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">g</span>.<span class="ident">ceil</span>(), <span class="number">4.0</span>);</pre>
  188. </div><h3 id='tymethod.round' class='method'><span id='round.v' class='invisible'><code>fn <a href='#tymethod.round' class='fnname'>round</a>(self) -&gt; Self</code></span></h3><div class='docblock'><p>Returns the nearest integer to a number. Round half-way cases away from
  189. <code>0.0</code>.</p>
  190. <pre class="rust rust-example-rendered">
  191. <span class="kw">use</span> <span class="ident">num_traits</span>::<span class="ident">Float</span>;
  192. <span class="kw">let</span> <span class="ident">f</span> <span class="op">=</span> <span class="number">3.3</span>;
  193. <span class="kw">let</span> <span class="ident">g</span> <span class="op">=</span> <span class="op">-</span><span class="number">3.3</span>;
  194. <span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">f</span>.<span class="ident">round</span>(), <span class="number">3.0</span>);
  195. <span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">g</span>.<span class="ident">round</span>(), <span class="op">-</span><span class="number">3.0</span>);</pre>
  196. </div><h3 id='tymethod.trunc' class='method'><span id='trunc.v' class='invisible'><code>fn <a href='#tymethod.trunc' class='fnname'>trunc</a>(self) -&gt; Self</code></span></h3><div class='docblock'><p>Return the integer part of a number.</p>
  197. <pre class="rust rust-example-rendered">
  198. <span class="kw">use</span> <span class="ident">num_traits</span>::<span class="ident">Float</span>;
  199. <span class="kw">let</span> <span class="ident">f</span> <span class="op">=</span> <span class="number">3.3</span>;
  200. <span class="kw">let</span> <span class="ident">g</span> <span class="op">=</span> <span class="op">-</span><span class="number">3.7</span>;
  201. <span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">f</span>.<span class="ident">trunc</span>(), <span class="number">3.0</span>);
  202. <span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">g</span>.<span class="ident">trunc</span>(), <span class="op">-</span><span class="number">3.0</span>);</pre>
  203. </div><h3 id='tymethod.fract' class='method'><span id='fract.v' class='invisible'><code>fn <a href='#tymethod.fract' class='fnname'>fract</a>(self) -&gt; Self</code></span></h3><div class='docblock'><p>Returns the fractional part of a number.</p>
  204. <pre class="rust rust-example-rendered">
  205. <span class="kw">use</span> <span class="ident">num_traits</span>::<span class="ident">Float</span>;
  206. <span class="kw">let</span> <span class="ident">x</span> <span class="op">=</span> <span class="number">3.5</span>;
  207. <span class="kw">let</span> <span class="ident">y</span> <span class="op">=</span> <span class="op">-</span><span class="number">3.5</span>;
  208. <span class="kw">let</span> <span class="ident">abs_difference_x</span> <span class="op">=</span> (<span class="ident">x</span>.<span class="ident">fract</span>() <span class="op">-</span> <span class="number">0.5</span>).<span class="ident">abs</span>();
  209. <span class="kw">let</span> <span class="ident">abs_difference_y</span> <span class="op">=</span> (<span class="ident">y</span>.<span class="ident">fract</span>() <span class="op">-</span> (<span class="op">-</span><span class="number">0.5</span>)).<span class="ident">abs</span>();
  210. <span class="macro">assert</span><span class="macro">!</span>(<span class="ident">abs_difference_x</span> <span class="op">&lt;</span> <span class="number">1e-10</span>);
  211. <span class="macro">assert</span><span class="macro">!</span>(<span class="ident">abs_difference_y</span> <span class="op">&lt;</span> <span class="number">1e-10</span>);</pre>
  212. </div><h3 id='tymethod.abs' class='method'><span id='abs.v' class='invisible'><code>fn <a href='#tymethod.abs' class='fnname'>abs</a>(self) -&gt; Self</code></span></h3><div class='docblock'><p>Computes the absolute value of <code>self</code>. Returns <code>Float::nan()</code> if the
  213. number is <code>Float::nan()</code>.</p>
  214. <pre class="rust rust-example-rendered">
  215. <span class="kw">use</span> <span class="ident">num_traits</span>::<span class="ident">Float</span>;
  216. <span class="kw">use</span> <span class="ident">std</span>::<span class="ident">f64</span>;
  217. <span class="kw">let</span> <span class="ident">x</span> <span class="op">=</span> <span class="number">3.5</span>;
  218. <span class="kw">let</span> <span class="ident">y</span> <span class="op">=</span> <span class="op">-</span><span class="number">3.5</span>;
  219. <span class="kw">let</span> <span class="ident">abs_difference_x</span> <span class="op">=</span> (<span class="ident">x</span>.<span class="ident">abs</span>() <span class="op">-</span> <span class="ident">x</span>).<span class="ident">abs</span>();
  220. <span class="kw">let</span> <span class="ident">abs_difference_y</span> <span class="op">=</span> (<span class="ident">y</span>.<span class="ident">abs</span>() <span class="op">-</span> (<span class="op">-</span><span class="ident">y</span>)).<span class="ident">abs</span>();
  221. <span class="macro">assert</span><span class="macro">!</span>(<span class="ident">abs_difference_x</span> <span class="op">&lt;</span> <span class="number">1e-10</span>);
  222. <span class="macro">assert</span><span class="macro">!</span>(<span class="ident">abs_difference_y</span> <span class="op">&lt;</span> <span class="number">1e-10</span>);
  223. <span class="macro">assert</span><span class="macro">!</span>(<span class="ident">f64</span>::<span class="ident">NAN</span>.<span class="ident">abs</span>().<span class="ident">is_nan</span>());</pre>
  224. </div><h3 id='tymethod.signum' class='method'><span id='signum.v' class='invisible'><code>fn <a href='#tymethod.signum' class='fnname'>signum</a>(self) -&gt; Self</code></span></h3><div class='docblock'><p>Returns a number that represents the sign of <code>self</code>.</p>
  225. <ul>
  226. <li><code>1.0</code> if the number is positive, <code>+0.0</code> or <code>Float::infinity()</code></li>
  227. <li><code>-1.0</code> if the number is negative, <code>-0.0</code> or <code>Float::neg_infinity()</code></li>
  228. <li><code>Float::nan()</code> if the number is <code>Float::nan()</code></li>
  229. </ul>
  230. <pre class="rust rust-example-rendered">
  231. <span class="kw">use</span> <span class="ident">num_traits</span>::<span class="ident">Float</span>;
  232. <span class="kw">use</span> <span class="ident">std</span>::<span class="ident">f64</span>;
  233. <span class="kw">let</span> <span class="ident">f</span> <span class="op">=</span> <span class="number">3.5</span>;
  234. <span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">f</span>.<span class="ident">signum</span>(), <span class="number">1.0</span>);
  235. <span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">f64</span>::<span class="ident">NEG_INFINITY</span>.<span class="ident">signum</span>(), <span class="op">-</span><span class="number">1.0</span>);
  236. <span class="macro">assert</span><span class="macro">!</span>(<span class="ident">f64</span>::<span class="ident">NAN</span>.<span class="ident">signum</span>().<span class="ident">is_nan</span>());</pre>
  237. </div><h3 id='tymethod.is_sign_positive' class='method'><span id='is_sign_positive.v' class='invisible'><code>fn <a href='#tymethod.is_sign_positive' class='fnname'>is_sign_positive</a>(self) -&gt; <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.bool.html">bool</a></code></span></h3><div class='docblock'><p>Returns <code>true</code> if <code>self</code> is positive, including <code>+0.0</code>,
  238. <code>Float::infinity()</code>, and since Rust 1.20 also <code>Float::nan()</code>.</p>
  239. <pre class="rust rust-example-rendered">
  240. <span class="kw">use</span> <span class="ident">num_traits</span>::<span class="ident">Float</span>;
  241. <span class="kw">use</span> <span class="ident">std</span>::<span class="ident">f64</span>;
  242. <span class="kw">let</span> <span class="ident">neg_nan</span>: <span class="ident">f64</span> <span class="op">=</span> <span class="op">-</span><span class="ident">f64</span>::<span class="ident">NAN</span>;
  243. <span class="kw">let</span> <span class="ident">f</span> <span class="op">=</span> <span class="number">7.0</span>;
  244. <span class="kw">let</span> <span class="ident">g</span> <span class="op">=</span> <span class="op">-</span><span class="number">7.0</span>;
  245. <span class="macro">assert</span><span class="macro">!</span>(<span class="ident">f</span>.<span class="ident">is_sign_positive</span>());
  246. <span class="macro">assert</span><span class="macro">!</span>(<span class="op">!</span><span class="ident">g</span>.<span class="ident">is_sign_positive</span>());
  247. <span class="macro">assert</span><span class="macro">!</span>(<span class="op">!</span><span class="ident">neg_nan</span>.<span class="ident">is_sign_positive</span>());</pre>
  248. </div><h3 id='tymethod.is_sign_negative' class='method'><span id='is_sign_negative.v' class='invisible'><code>fn <a href='#tymethod.is_sign_negative' class='fnname'>is_sign_negative</a>(self) -&gt; <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.bool.html">bool</a></code></span></h3><div class='docblock'><p>Returns <code>true</code> if <code>self</code> is negative, including <code>-0.0</code>,
  249. <code>Float::neg_infinity()</code>, and since Rust 1.20 also <code>-Float::nan()</code>.</p>
  250. <pre class="rust rust-example-rendered">
  251. <span class="kw">use</span> <span class="ident">num_traits</span>::<span class="ident">Float</span>;
  252. <span class="kw">use</span> <span class="ident">std</span>::<span class="ident">f64</span>;
  253. <span class="kw">let</span> <span class="ident">nan</span>: <span class="ident">f64</span> <span class="op">=</span> <span class="ident">f64</span>::<span class="ident">NAN</span>;
  254. <span class="kw">let</span> <span class="ident">f</span> <span class="op">=</span> <span class="number">7.0</span>;
  255. <span class="kw">let</span> <span class="ident">g</span> <span class="op">=</span> <span class="op">-</span><span class="number">7.0</span>;
  256. <span class="macro">assert</span><span class="macro">!</span>(<span class="op">!</span><span class="ident">f</span>.<span class="ident">is_sign_negative</span>());
  257. <span class="macro">assert</span><span class="macro">!</span>(<span class="ident">g</span>.<span class="ident">is_sign_negative</span>());
  258. <span class="macro">assert</span><span class="macro">!</span>(<span class="op">!</span><span class="ident">nan</span>.<span class="ident">is_sign_negative</span>());</pre>
  259. </div><h3 id='tymethod.mul_add' class='method'><span id='mul_add.v' class='invisible'><code>fn <a href='#tymethod.mul_add' class='fnname'>mul_add</a>(self, a: Self, b: Self) -&gt; Self</code></span></h3><div class='docblock'><p>Fused multiply-add. Computes <code>(self * a) + b</code> with only one rounding
  260. error, yielding a more accurate result than an unfused multiply-add.</p>
  261. <p>Using <code>mul_add</code> can be more performant than an unfused multiply-add if
  262. the target architecture has a dedicated <code>fma</code> CPU instruction.</p>
  263. <pre class="rust rust-example-rendered">
  264. <span class="kw">use</span> <span class="ident">num_traits</span>::<span class="ident">Float</span>;
  265. <span class="kw">let</span> <span class="ident">m</span> <span class="op">=</span> <span class="number">10.0</span>;
  266. <span class="kw">let</span> <span class="ident">x</span> <span class="op">=</span> <span class="number">4.0</span>;
  267. <span class="kw">let</span> <span class="ident">b</span> <span class="op">=</span> <span class="number">60.0</span>;
  268. <span class="comment">// 100.0</span>
  269. <span class="kw">let</span> <span class="ident">abs_difference</span> <span class="op">=</span> (<span class="ident">m</span>.<span class="ident">mul_add</span>(<span class="ident">x</span>, <span class="ident">b</span>) <span class="op">-</span> (<span class="ident">m</span><span class="kw-2">*</span><span class="ident">x</span> <span class="op">+</span> <span class="ident">b</span>)).<span class="ident">abs</span>();
  270. <span class="macro">assert</span><span class="macro">!</span>(<span class="ident">abs_difference</span> <span class="op">&lt;</span> <span class="number">1e-10</span>);</pre>
  271. </div><h3 id='tymethod.recip' class='method'><span id='recip.v' class='invisible'><code>fn <a href='#tymethod.recip' class='fnname'>recip</a>(self) -&gt; Self</code></span></h3><div class='docblock'><p>Take the reciprocal (inverse) of a number, <code>1/x</code>.</p>
  272. <pre class="rust rust-example-rendered">
  273. <span class="kw">use</span> <span class="ident">num_traits</span>::<span class="ident">Float</span>;
  274. <span class="kw">let</span> <span class="ident">x</span> <span class="op">=</span> <span class="number">2.0</span>;
  275. <span class="kw">let</span> <span class="ident">abs_difference</span> <span class="op">=</span> (<span class="ident">x</span>.<span class="ident">recip</span>() <span class="op">-</span> (<span class="number">1.0</span><span class="op">/</span><span class="ident">x</span>)).<span class="ident">abs</span>();
  276. <span class="macro">assert</span><span class="macro">!</span>(<span class="ident">abs_difference</span> <span class="op">&lt;</span> <span class="number">1e-10</span>);</pre>
  277. </div><h3 id='tymethod.powi' class='method'><span id='powi.v' class='invisible'><code>fn <a href='#tymethod.powi' class='fnname'>powi</a>(self, n: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.i32.html">i32</a>) -&gt; Self</code></span></h3><div class='docblock'><p>Raise a number to an integer power.</p>
  278. <p>Using this function is generally faster than using <code>powf</code></p>
  279. <pre class="rust rust-example-rendered">
  280. <span class="kw">use</span> <span class="ident">num_traits</span>::<span class="ident">Float</span>;
  281. <span class="kw">let</span> <span class="ident">x</span> <span class="op">=</span> <span class="number">2.0</span>;
  282. <span class="kw">let</span> <span class="ident">abs_difference</span> <span class="op">=</span> (<span class="ident">x</span>.<span class="ident">powi</span>(<span class="number">2</span>) <span class="op">-</span> <span class="ident">x</span><span class="kw-2">*</span><span class="ident">x</span>).<span class="ident">abs</span>();
  283. <span class="macro">assert</span><span class="macro">!</span>(<span class="ident">abs_difference</span> <span class="op">&lt;</span> <span class="number">1e-10</span>);</pre>
  284. </div><h3 id='tymethod.powf' class='method'><span id='powf.v' class='invisible'><code>fn <a href='#tymethod.powf' class='fnname'>powf</a>(self, n: Self) -&gt; Self</code></span></h3><div class='docblock'><p>Raise a number to a floating point power.</p>
  285. <pre class="rust rust-example-rendered">
  286. <span class="kw">use</span> <span class="ident">num_traits</span>::<span class="ident">Float</span>;
  287. <span class="kw">let</span> <span class="ident">x</span> <span class="op">=</span> <span class="number">2.0</span>;
  288. <span class="kw">let</span> <span class="ident">abs_difference</span> <span class="op">=</span> (<span class="ident">x</span>.<span class="ident">powf</span>(<span class="number">2.0</span>) <span class="op">-</span> <span class="ident">x</span><span class="kw-2">*</span><span class="ident">x</span>).<span class="ident">abs</span>();
  289. <span class="macro">assert</span><span class="macro">!</span>(<span class="ident">abs_difference</span> <span class="op">&lt;</span> <span class="number">1e-10</span>);</pre>
  290. </div><h3 id='tymethod.sqrt' class='method'><span id='sqrt.v' class='invisible'><code>fn <a href='#tymethod.sqrt' class='fnname'>sqrt</a>(self) -&gt; Self</code></span></h3><div class='docblock'><p>Take the square root of a number.</p>
  291. <p>Returns NaN if <code>self</code> is a negative number.</p>
  292. <pre class="rust rust-example-rendered">
  293. <span class="kw">use</span> <span class="ident">num_traits</span>::<span class="ident">Float</span>;
  294. <span class="kw">let</span> <span class="ident">positive</span> <span class="op">=</span> <span class="number">4.0</span>;
  295. <span class="kw">let</span> <span class="ident">negative</span> <span class="op">=</span> <span class="op">-</span><span class="number">4.0</span>;
  296. <span class="kw">let</span> <span class="ident">abs_difference</span> <span class="op">=</span> (<span class="ident">positive</span>.<span class="ident">sqrt</span>() <span class="op">-</span> <span class="number">2.0</span>).<span class="ident">abs</span>();
  297. <span class="macro">assert</span><span class="macro">!</span>(<span class="ident">abs_difference</span> <span class="op">&lt;</span> <span class="number">1e-10</span>);
  298. <span class="macro">assert</span><span class="macro">!</span>(<span class="ident">negative</span>.<span class="ident">sqrt</span>().<span class="ident">is_nan</span>());</pre>
  299. </div><h3 id='tymethod.exp' class='method'><span id='exp.v' class='invisible'><code>fn <a href='#tymethod.exp' class='fnname'>exp</a>(self) -&gt; Self</code></span></h3><div class='docblock'><p>Returns <code>e^(self)</code>, (the exponential function).</p>
  300. <pre class="rust rust-example-rendered">
  301. <span class="kw">use</span> <span class="ident">num_traits</span>::<span class="ident">Float</span>;
  302. <span class="kw">let</span> <span class="ident">one</span> <span class="op">=</span> <span class="number">1.0</span>;
  303. <span class="comment">// e^1</span>
  304. <span class="kw">let</span> <span class="ident">e</span> <span class="op">=</span> <span class="ident">one</span>.<span class="ident">exp</span>();
  305. <span class="comment">// ln(e) - 1 == 0</span>
  306. <span class="kw">let</span> <span class="ident">abs_difference</span> <span class="op">=</span> (<span class="ident">e</span>.<span class="ident">ln</span>() <span class="op">-</span> <span class="number">1.0</span>).<span class="ident">abs</span>();
  307. <span class="macro">assert</span><span class="macro">!</span>(<span class="ident">abs_difference</span> <span class="op">&lt;</span> <span class="number">1e-10</span>);</pre>
  308. </div><h3 id='tymethod.exp2' class='method'><span id='exp2.v' class='invisible'><code>fn <a href='#tymethod.exp2' class='fnname'>exp2</a>(self) -&gt; Self</code></span></h3><div class='docblock'><p>Returns <code>2^(self)</code>.</p>
  309. <pre class="rust rust-example-rendered">
  310. <span class="kw">use</span> <span class="ident">num_traits</span>::<span class="ident">Float</span>;
  311. <span class="kw">let</span> <span class="ident">f</span> <span class="op">=</span> <span class="number">2.0</span>;
  312. <span class="comment">// 2^2 - 4 == 0</span>
  313. <span class="kw">let</span> <span class="ident">abs_difference</span> <span class="op">=</span> (<span class="ident">f</span>.<span class="ident">exp2</span>() <span class="op">-</span> <span class="number">4.0</span>).<span class="ident">abs</span>();
  314. <span class="macro">assert</span><span class="macro">!</span>(<span class="ident">abs_difference</span> <span class="op">&lt;</span> <span class="number">1e-10</span>);</pre>
  315. </div><h3 id='tymethod.ln' class='method'><span id='ln.v' class='invisible'><code>fn <a href='#tymethod.ln' class='fnname'>ln</a>(self) -&gt; Self</code></span></h3><div class='docblock'><p>Returns the natural logarithm of the number.</p>
  316. <pre class="rust rust-example-rendered">
  317. <span class="kw">use</span> <span class="ident">num_traits</span>::<span class="ident">Float</span>;
  318. <span class="kw">let</span> <span class="ident">one</span> <span class="op">=</span> <span class="number">1.0</span>;
  319. <span class="comment">// e^1</span>
  320. <span class="kw">let</span> <span class="ident">e</span> <span class="op">=</span> <span class="ident">one</span>.<span class="ident">exp</span>();
  321. <span class="comment">// ln(e) - 1 == 0</span>
  322. <span class="kw">let</span> <span class="ident">abs_difference</span> <span class="op">=</span> (<span class="ident">e</span>.<span class="ident">ln</span>() <span class="op">-</span> <span class="number">1.0</span>).<span class="ident">abs</span>();
  323. <span class="macro">assert</span><span class="macro">!</span>(<span class="ident">abs_difference</span> <span class="op">&lt;</span> <span class="number">1e-10</span>);</pre>
  324. </div><h3 id='tymethod.log' class='method'><span id='log.v' class='invisible'><code>fn <a href='#tymethod.log' class='fnname'>log</a>(self, base: Self) -&gt; Self</code></span></h3><div class='docblock'><p>Returns the logarithm of the number with respect to an arbitrary base.</p>
  325. <pre class="rust rust-example-rendered">
  326. <span class="kw">use</span> <span class="ident">num_traits</span>::<span class="ident">Float</span>;
  327. <span class="kw">let</span> <span class="ident">ten</span> <span class="op">=</span> <span class="number">10.0</span>;
  328. <span class="kw">let</span> <span class="ident">two</span> <span class="op">=</span> <span class="number">2.0</span>;
  329. <span class="comment">// log10(10) - 1 == 0</span>
  330. <span class="kw">let</span> <span class="ident">abs_difference_10</span> <span class="op">=</span> (<span class="ident">ten</span>.<span class="ident">log</span>(<span class="number">10.0</span>) <span class="op">-</span> <span class="number">1.0</span>).<span class="ident">abs</span>();
  331. <span class="comment">// log2(2) - 1 == 0</span>
  332. <span class="kw">let</span> <span class="ident">abs_difference_2</span> <span class="op">=</span> (<span class="ident">two</span>.<span class="ident">log</span>(<span class="number">2.0</span>) <span class="op">-</span> <span class="number">1.0</span>).<span class="ident">abs</span>();
  333. <span class="macro">assert</span><span class="macro">!</span>(<span class="ident">abs_difference_10</span> <span class="op">&lt;</span> <span class="number">1e-10</span>);
  334. <span class="macro">assert</span><span class="macro">!</span>(<span class="ident">abs_difference_2</span> <span class="op">&lt;</span> <span class="number">1e-10</span>);</pre>
  335. </div><h3 id='tymethod.log2' class='method'><span id='log2.v' class='invisible'><code>fn <a href='#tymethod.log2' class='fnname'>log2</a>(self) -&gt; Self</code></span></h3><div class='docblock'><p>Returns the base 2 logarithm of the number.</p>
  336. <pre class="rust rust-example-rendered">
  337. <span class="kw">use</span> <span class="ident">num_traits</span>::<span class="ident">Float</span>;
  338. <span class="kw">let</span> <span class="ident">two</span> <span class="op">=</span> <span class="number">2.0</span>;
  339. <span class="comment">// log2(2) - 1 == 0</span>
  340. <span class="kw">let</span> <span class="ident">abs_difference</span> <span class="op">=</span> (<span class="ident">two</span>.<span class="ident">log2</span>() <span class="op">-</span> <span class="number">1.0</span>).<span class="ident">abs</span>();
  341. <span class="macro">assert</span><span class="macro">!</span>(<span class="ident">abs_difference</span> <span class="op">&lt;</span> <span class="number">1e-10</span>);</pre>
  342. </div><h3 id='tymethod.log10' class='method'><span id='log10.v' class='invisible'><code>fn <a href='#tymethod.log10' class='fnname'>log10</a>(self) -&gt; Self</code></span></h3><div class='docblock'><p>Returns the base 10 logarithm of the number.</p>
  343. <pre class="rust rust-example-rendered">
  344. <span class="kw">use</span> <span class="ident">num_traits</span>::<span class="ident">Float</span>;
  345. <span class="kw">let</span> <span class="ident">ten</span> <span class="op">=</span> <span class="number">10.0</span>;
  346. <span class="comment">// log10(10) - 1 == 0</span>
  347. <span class="kw">let</span> <span class="ident">abs_difference</span> <span class="op">=</span> (<span class="ident">ten</span>.<span class="ident">log10</span>() <span class="op">-</span> <span class="number">1.0</span>).<span class="ident">abs</span>();
  348. <span class="macro">assert</span><span class="macro">!</span>(<span class="ident">abs_difference</span> <span class="op">&lt;</span> <span class="number">1e-10</span>);</pre>
  349. </div><h3 id='tymethod.max' class='method'><span id='max.v' class='invisible'><code>fn <a href='#tymethod.max' class='fnname'>max</a>(self, other: Self) -&gt; Self</code></span></h3><div class='docblock'><p>Returns the maximum of the two numbers.</p>
  350. <pre class="rust rust-example-rendered">
  351. <span class="kw">use</span> <span class="ident">num_traits</span>::<span class="ident">Float</span>;
  352. <span class="kw">let</span> <span class="ident">x</span> <span class="op">=</span> <span class="number">1.0</span>;
  353. <span class="kw">let</span> <span class="ident">y</span> <span class="op">=</span> <span class="number">2.0</span>;
  354. <span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">x</span>.<span class="ident">max</span>(<span class="ident">y</span>), <span class="ident">y</span>);</pre>
  355. </div><h3 id='tymethod.min' class='method'><span id='min.v' class='invisible'><code>fn <a href='#tymethod.min' class='fnname'>min</a>(self, other: Self) -&gt; Self</code></span></h3><div class='docblock'><p>Returns the minimum of the two numbers.</p>
  356. <pre class="rust rust-example-rendered">
  357. <span class="kw">use</span> <span class="ident">num_traits</span>::<span class="ident">Float</span>;
  358. <span class="kw">let</span> <span class="ident">x</span> <span class="op">=</span> <span class="number">1.0</span>;
  359. <span class="kw">let</span> <span class="ident">y</span> <span class="op">=</span> <span class="number">2.0</span>;
  360. <span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">x</span>.<span class="ident">min</span>(<span class="ident">y</span>), <span class="ident">x</span>);</pre>
  361. </div><h3 id='tymethod.abs_sub' class='method'><span id='abs_sub.v' class='invisible'><code>fn <a href='#tymethod.abs_sub' class='fnname'>abs_sub</a>(self, other: Self) -&gt; Self</code></span></h3><div class='docblock'><p>The positive difference of two numbers.</p>
  362. <ul>
  363. <li>If <code>self &lt;= other</code>: <code>0:0</code></li>
  364. <li>Else: <code>self - other</code></li>
  365. </ul>
  366. <pre class="rust rust-example-rendered">
  367. <span class="kw">use</span> <span class="ident">num_traits</span>::<span class="ident">Float</span>;
  368. <span class="kw">let</span> <span class="ident">x</span> <span class="op">=</span> <span class="number">3.0</span>;
  369. <span class="kw">let</span> <span class="ident">y</span> <span class="op">=</span> <span class="op">-</span><span class="number">3.0</span>;
  370. <span class="kw">let</span> <span class="ident">abs_difference_x</span> <span class="op">=</span> (<span class="ident">x</span>.<span class="ident">abs_sub</span>(<span class="number">1.0</span>) <span class="op">-</span> <span class="number">2.0</span>).<span class="ident">abs</span>();
  371. <span class="kw">let</span> <span class="ident">abs_difference_y</span> <span class="op">=</span> (<span class="ident">y</span>.<span class="ident">abs_sub</span>(<span class="number">1.0</span>) <span class="op">-</span> <span class="number">0.0</span>).<span class="ident">abs</span>();
  372. <span class="macro">assert</span><span class="macro">!</span>(<span class="ident">abs_difference_x</span> <span class="op">&lt;</span> <span class="number">1e-10</span>);
  373. <span class="macro">assert</span><span class="macro">!</span>(<span class="ident">abs_difference_y</span> <span class="op">&lt;</span> <span class="number">1e-10</span>);</pre>
  374. </div><h3 id='tymethod.cbrt' class='method'><span id='cbrt.v' class='invisible'><code>fn <a href='#tymethod.cbrt' class='fnname'>cbrt</a>(self) -&gt; Self</code></span></h3><div class='docblock'><p>Take the cubic root of a number.</p>
  375. <pre class="rust rust-example-rendered">
  376. <span class="kw">use</span> <span class="ident">num_traits</span>::<span class="ident">Float</span>;
  377. <span class="kw">let</span> <span class="ident">x</span> <span class="op">=</span> <span class="number">8.0</span>;
  378. <span class="comment">// x^(1/3) - 2 == 0</span>
  379. <span class="kw">let</span> <span class="ident">abs_difference</span> <span class="op">=</span> (<span class="ident">x</span>.<span class="ident">cbrt</span>() <span class="op">-</span> <span class="number">2.0</span>).<span class="ident">abs</span>();
  380. <span class="macro">assert</span><span class="macro">!</span>(<span class="ident">abs_difference</span> <span class="op">&lt;</span> <span class="number">1e-10</span>);</pre>
  381. </div><h3 id='tymethod.hypot' class='method'><span id='hypot.v' class='invisible'><code>fn <a href='#tymethod.hypot' class='fnname'>hypot</a>(self, other: Self) -&gt; Self</code></span></h3><div class='docblock'><p>Calculate the length of the hypotenuse of a right-angle triangle given
  382. legs of length <code>x</code> and <code>y</code>.</p>
  383. <pre class="rust rust-example-rendered">
  384. <span class="kw">use</span> <span class="ident">num_traits</span>::<span class="ident">Float</span>;
  385. <span class="kw">let</span> <span class="ident">x</span> <span class="op">=</span> <span class="number">2.0</span>;
  386. <span class="kw">let</span> <span class="ident">y</span> <span class="op">=</span> <span class="number">3.0</span>;
  387. <span class="comment">// sqrt(x^2 + y^2)</span>
  388. <span class="kw">let</span> <span class="ident">abs_difference</span> <span class="op">=</span> (<span class="ident">x</span>.<span class="ident">hypot</span>(<span class="ident">y</span>) <span class="op">-</span> (<span class="ident">x</span>.<span class="ident">powi</span>(<span class="number">2</span>) <span class="op">+</span> <span class="ident">y</span>.<span class="ident">powi</span>(<span class="number">2</span>)).<span class="ident">sqrt</span>()).<span class="ident">abs</span>();
  389. <span class="macro">assert</span><span class="macro">!</span>(<span class="ident">abs_difference</span> <span class="op">&lt;</span> <span class="number">1e-10</span>);</pre>
  390. </div><h3 id='tymethod.sin' class='method'><span id='sin.v' class='invisible'><code>fn <a href='#tymethod.sin' class='fnname'>sin</a>(self) -&gt; Self</code></span></h3><div class='docblock'><p>Computes the sine of a number (in radians).</p>
  391. <pre class="rust rust-example-rendered">
  392. <span class="kw">use</span> <span class="ident">num_traits</span>::<span class="ident">Float</span>;
  393. <span class="kw">use</span> <span class="ident">std</span>::<span class="ident">f64</span>;
  394. <span class="kw">let</span> <span class="ident">x</span> <span class="op">=</span> <span class="ident">f64</span>::<span class="ident">consts</span>::<span class="ident">PI</span><span class="op">/</span><span class="number">2.0</span>;
  395. <span class="kw">let</span> <span class="ident">abs_difference</span> <span class="op">=</span> (<span class="ident">x</span>.<span class="ident">sin</span>() <span class="op">-</span> <span class="number">1.0</span>).<span class="ident">abs</span>();
  396. <span class="macro">assert</span><span class="macro">!</span>(<span class="ident">abs_difference</span> <span class="op">&lt;</span> <span class="number">1e-10</span>);</pre>
  397. </div><h3 id='tymethod.cos' class='method'><span id='cos.v' class='invisible'><code>fn <a href='#tymethod.cos' class='fnname'>cos</a>(self) -&gt; Self</code></span></h3><div class='docblock'><p>Computes the cosine of a number (in radians).</p>
  398. <pre class="rust rust-example-rendered">
  399. <span class="kw">use</span> <span class="ident">num_traits</span>::<span class="ident">Float</span>;
  400. <span class="kw">use</span> <span class="ident">std</span>::<span class="ident">f64</span>;
  401. <span class="kw">let</span> <span class="ident">x</span> <span class="op">=</span> <span class="number">2.0</span><span class="kw-2">*</span><span class="ident">f64</span>::<span class="ident">consts</span>::<span class="ident">PI</span>;
  402. <span class="kw">let</span> <span class="ident">abs_difference</span> <span class="op">=</span> (<span class="ident">x</span>.<span class="ident">cos</span>() <span class="op">-</span> <span class="number">1.0</span>).<span class="ident">abs</span>();
  403. <span class="macro">assert</span><span class="macro">!</span>(<span class="ident">abs_difference</span> <span class="op">&lt;</span> <span class="number">1e-10</span>);</pre>
  404. </div><h3 id='tymethod.tan' class='method'><span id='tan.v' class='invisible'><code>fn <a href='#tymethod.tan' class='fnname'>tan</a>(self) -&gt; Self</code></span></h3><div class='docblock'><p>Computes the tangent of a number (in radians).</p>
  405. <pre class="rust rust-example-rendered">
  406. <span class="kw">use</span> <span class="ident">num_traits</span>::<span class="ident">Float</span>;
  407. <span class="kw">use</span> <span class="ident">std</span>::<span class="ident">f64</span>;
  408. <span class="kw">let</span> <span class="ident">x</span> <span class="op">=</span> <span class="ident">f64</span>::<span class="ident">consts</span>::<span class="ident">PI</span><span class="op">/</span><span class="number">4.0</span>;
  409. <span class="kw">let</span> <span class="ident">abs_difference</span> <span class="op">=</span> (<span class="ident">x</span>.<span class="ident">tan</span>() <span class="op">-</span> <span class="number">1.0</span>).<span class="ident">abs</span>();
  410. <span class="macro">assert</span><span class="macro">!</span>(<span class="ident">abs_difference</span> <span class="op">&lt;</span> <span class="number">1e-14</span>);</pre>
  411. </div><h3 id='tymethod.asin' class='method'><span id='asin.v' class='invisible'><code>fn <a href='#tymethod.asin' class='fnname'>asin</a>(self) -&gt; Self</code></span></h3><div class='docblock'><p>Computes the arcsine of a number. Return value is in radians in
  412. the range [-pi/2, pi/2] or NaN if the number is outside the range
  413. [-1, 1].</p>
  414. <pre class="rust rust-example-rendered">
  415. <span class="kw">use</span> <span class="ident">num_traits</span>::<span class="ident">Float</span>;
  416. <span class="kw">use</span> <span class="ident">std</span>::<span class="ident">f64</span>;
  417. <span class="kw">let</span> <span class="ident">f</span> <span class="op">=</span> <span class="ident">f64</span>::<span class="ident">consts</span>::<span class="ident">PI</span> <span class="op">/</span> <span class="number">2.0</span>;
  418. <span class="comment">// asin(sin(pi/2))</span>
  419. <span class="kw">let</span> <span class="ident">abs_difference</span> <span class="op">=</span> (<span class="ident">f</span>.<span class="ident">sin</span>().<span class="ident">asin</span>() <span class="op">-</span> <span class="ident">f64</span>::<span class="ident">consts</span>::<span class="ident">PI</span> <span class="op">/</span> <span class="number">2.0</span>).<span class="ident">abs</span>();
  420. <span class="macro">assert</span><span class="macro">!</span>(<span class="ident">abs_difference</span> <span class="op">&lt;</span> <span class="number">1e-10</span>);</pre>
  421. </div><h3 id='tymethod.acos' class='method'><span id='acos.v' class='invisible'><code>fn <a href='#tymethod.acos' class='fnname'>acos</a>(self) -&gt; Self</code></span></h3><div class='docblock'><p>Computes the arccosine of a number. Return value is in radians in
  422. the range [0, pi] or NaN if the number is outside the range
  423. [-1, 1].</p>
  424. <pre class="rust rust-example-rendered">
  425. <span class="kw">use</span> <span class="ident">num_traits</span>::<span class="ident">Float</span>;
  426. <span class="kw">use</span> <span class="ident">std</span>::<span class="ident">f64</span>;
  427. <span class="kw">let</span> <span class="ident">f</span> <span class="op">=</span> <span class="ident">f64</span>::<span class="ident">consts</span>::<span class="ident">PI</span> <span class="op">/</span> <span class="number">4.0</span>;
  428. <span class="comment">// acos(cos(pi/4))</span>
  429. <span class="kw">let</span> <span class="ident">abs_difference</span> <span class="op">=</span> (<span class="ident">f</span>.<span class="ident">cos</span>().<span class="ident">acos</span>() <span class="op">-</span> <span class="ident">f64</span>::<span class="ident">consts</span>::<span class="ident">PI</span> <span class="op">/</span> <span class="number">4.0</span>).<span class="ident">abs</span>();
  430. <span class="macro">assert</span><span class="macro">!</span>(<span class="ident">abs_difference</span> <span class="op">&lt;</span> <span class="number">1e-10</span>);</pre>
  431. </div><h3 id='tymethod.atan' class='method'><span id='atan.v' class='invisible'><code>fn <a href='#tymethod.atan' class='fnname'>atan</a>(self) -&gt; Self</code></span></h3><div class='docblock'><p>Computes the arctangent of a number. Return value is in radians in the
  432. range [-pi/2, pi/2];</p>
  433. <pre class="rust rust-example-rendered">
  434. <span class="kw">use</span> <span class="ident">num_traits</span>::<span class="ident">Float</span>;
  435. <span class="kw">let</span> <span class="ident">f</span> <span class="op">=</span> <span class="number">1.0</span>;
  436. <span class="comment">// atan(tan(1))</span>
  437. <span class="kw">let</span> <span class="ident">abs_difference</span> <span class="op">=</span> (<span class="ident">f</span>.<span class="ident">tan</span>().<span class="ident">atan</span>() <span class="op">-</span> <span class="number">1.0</span>).<span class="ident">abs</span>();
  438. <span class="macro">assert</span><span class="macro">!</span>(<span class="ident">abs_difference</span> <span class="op">&lt;</span> <span class="number">1e-10</span>);</pre>
  439. </div><h3 id='tymethod.atan2' class='method'><span id='atan2.v' class='invisible'><code>fn <a href='#tymethod.atan2' class='fnname'>atan2</a>(self, other: Self) -&gt; Self</code></span></h3><div class='docblock'><p>Computes the four quadrant arctangent of <code>self</code> (<code>y</code>) and <code>other</code> (<code>x</code>).</p>
  440. <ul>
  441. <li><code>x = 0</code>, <code>y = 0</code>: <code>0</code></li>
  442. <li><code>x &gt;= 0</code>: <code>arctan(y/x)</code> -&gt; <code>[-pi/2, pi/2]</code></li>
  443. <li><code>y &gt;= 0</code>: <code>arctan(y/x) + pi</code> -&gt; <code>(pi/2, pi]</code></li>
  444. <li><code>y &lt; 0</code>: <code>arctan(y/x) - pi</code> -&gt; <code>(-pi, -pi/2)</code></li>
  445. </ul>
  446. <pre class="rust rust-example-rendered">
  447. <span class="kw">use</span> <span class="ident">num_traits</span>::<span class="ident">Float</span>;
  448. <span class="kw">use</span> <span class="ident">std</span>::<span class="ident">f64</span>;
  449. <span class="kw">let</span> <span class="ident">pi</span> <span class="op">=</span> <span class="ident">f64</span>::<span class="ident">consts</span>::<span class="ident">PI</span>;
  450. <span class="comment">// All angles from horizontal right (+x)</span>
  451. <span class="comment">// 45 deg counter-clockwise</span>
  452. <span class="kw">let</span> <span class="ident">x1</span> <span class="op">=</span> <span class="number">3.0</span>;
  453. <span class="kw">let</span> <span class="ident">y1</span> <span class="op">=</span> <span class="op">-</span><span class="number">3.0</span>;
  454. <span class="comment">// 135 deg clockwise</span>
  455. <span class="kw">let</span> <span class="ident">x2</span> <span class="op">=</span> <span class="op">-</span><span class="number">3.0</span>;
  456. <span class="kw">let</span> <span class="ident">y2</span> <span class="op">=</span> <span class="number">3.0</span>;
  457. <span class="kw">let</span> <span class="ident">abs_difference_1</span> <span class="op">=</span> (<span class="ident">y1</span>.<span class="ident">atan2</span>(<span class="ident">x1</span>) <span class="op">-</span> (<span class="op">-</span><span class="ident">pi</span><span class="op">/</span><span class="number">4.0</span>)).<span class="ident">abs</span>();
  458. <span class="kw">let</span> <span class="ident">abs_difference_2</span> <span class="op">=</span> (<span class="ident">y2</span>.<span class="ident">atan2</span>(<span class="ident">x2</span>) <span class="op">-</span> <span class="number">3.0</span><span class="kw-2">*</span><span class="ident">pi</span><span class="op">/</span><span class="number">4.0</span>).<span class="ident">abs</span>();
  459. <span class="macro">assert</span><span class="macro">!</span>(<span class="ident">abs_difference_1</span> <span class="op">&lt;</span> <span class="number">1e-10</span>);
  460. <span class="macro">assert</span><span class="macro">!</span>(<span class="ident">abs_difference_2</span> <span class="op">&lt;</span> <span class="number">1e-10</span>);</pre>
  461. </div><h3 id='tymethod.sin_cos' class='method'><span id='sin_cos.v' class='invisible'><code>fn <a href='#tymethod.sin_cos' class='fnname'>sin_cos</a>(self) -&gt; <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.tuple.html">(</a>Self, Self<a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.tuple.html">)</a></code></span></h3><div class='docblock'><p>Simultaneously computes the sine and cosine of the number, <code>x</code>. Returns
  462. <code>(sin(x), cos(x))</code>.</p>
  463. <pre class="rust rust-example-rendered">
  464. <span class="kw">use</span> <span class="ident">num_traits</span>::<span class="ident">Float</span>;
  465. <span class="kw">use</span> <span class="ident">std</span>::<span class="ident">f64</span>;
  466. <span class="kw">let</span> <span class="ident">x</span> <span class="op">=</span> <span class="ident">f64</span>::<span class="ident">consts</span>::<span class="ident">PI</span><span class="op">/</span><span class="number">4.0</span>;
  467. <span class="kw">let</span> <span class="ident">f</span> <span class="op">=</span> <span class="ident">x</span>.<span class="ident">sin_cos</span>();
  468. <span class="kw">let</span> <span class="ident">abs_difference_0</span> <span class="op">=</span> (<span class="ident">f</span>.<span class="number">0</span> <span class="op">-</span> <span class="ident">x</span>.<span class="ident">sin</span>()).<span class="ident">abs</span>();
  469. <span class="kw">let</span> <span class="ident">abs_difference_1</span> <span class="op">=</span> (<span class="ident">f</span>.<span class="number">1</span> <span class="op">-</span> <span class="ident">x</span>.<span class="ident">cos</span>()).<span class="ident">abs</span>();
  470. <span class="macro">assert</span><span class="macro">!</span>(<span class="ident">abs_difference_0</span> <span class="op">&lt;</span> <span class="number">1e-10</span>);
  471. <span class="macro">assert</span><span class="macro">!</span>(<span class="ident">abs_difference_0</span> <span class="op">&lt;</span> <span class="number">1e-10</span>);</pre>
  472. </div><h3 id='tymethod.exp_m1' class='method'><span id='exp_m1.v' class='invisible'><code>fn <a href='#tymethod.exp_m1' class='fnname'>exp_m1</a>(self) -&gt; Self</code></span></h3><div class='docblock'><p>Returns <code>e^(self) - 1</code> in a way that is accurate even if the
  473. number is close to zero.</p>
  474. <pre class="rust rust-example-rendered">
  475. <span class="kw">use</span> <span class="ident">num_traits</span>::<span class="ident">Float</span>;
  476. <span class="kw">let</span> <span class="ident">x</span> <span class="op">=</span> <span class="number">7.0</span>;
  477. <span class="comment">// e^(ln(7)) - 1</span>
  478. <span class="kw">let</span> <span class="ident">abs_difference</span> <span class="op">=</span> (<span class="ident">x</span>.<span class="ident">ln</span>().<span class="ident">exp_m1</span>() <span class="op">-</span> <span class="number">6.0</span>).<span class="ident">abs</span>();
  479. <span class="macro">assert</span><span class="macro">!</span>(<span class="ident">abs_difference</span> <span class="op">&lt;</span> <span class="number">1e-10</span>);</pre>
  480. </div><h3 id='tymethod.ln_1p' class='method'><span id='ln_1p.v' class='invisible'><code>fn <a href='#tymethod.ln_1p' class='fnname'>ln_1p</a>(self) -&gt; Self</code></span></h3><div class='docblock'><p>Returns <code>ln(1+n)</code> (natural logarithm) more accurately than if
  481. the operations were performed separately.</p>
  482. <pre class="rust rust-example-rendered">
  483. <span class="kw">use</span> <span class="ident">num_traits</span>::<span class="ident">Float</span>;
  484. <span class="kw">use</span> <span class="ident">std</span>::<span class="ident">f64</span>;
  485. <span class="kw">let</span> <span class="ident">x</span> <span class="op">=</span> <span class="ident">f64</span>::<span class="ident">consts</span>::<span class="ident">E</span> <span class="op">-</span> <span class="number">1.0</span>;
  486. <span class="comment">// ln(1 + (e - 1)) == ln(e) == 1</span>
  487. <span class="kw">let</span> <span class="ident">abs_difference</span> <span class="op">=</span> (<span class="ident">x</span>.<span class="ident">ln_1p</span>() <span class="op">-</span> <span class="number">1.0</span>).<span class="ident">abs</span>();
  488. <span class="macro">assert</span><span class="macro">!</span>(<span class="ident">abs_difference</span> <span class="op">&lt;</span> <span class="number">1e-10</span>);</pre>
  489. </div><h3 id='tymethod.sinh' class='method'><span id='sinh.v' class='invisible'><code>fn <a href='#tymethod.sinh' class='fnname'>sinh</a>(self) -&gt; Self</code></span></h3><div class='docblock'><p>Hyperbolic sine function.</p>
  490. <pre class="rust rust-example-rendered">
  491. <span class="kw">use</span> <span class="ident">num_traits</span>::<span class="ident">Float</span>;
  492. <span class="kw">use</span> <span class="ident">std</span>::<span class="ident">f64</span>;
  493. <span class="kw">let</span> <span class="ident">e</span> <span class="op">=</span> <span class="ident">f64</span>::<span class="ident">consts</span>::<span class="ident">E</span>;
  494. <span class="kw">let</span> <span class="ident">x</span> <span class="op">=</span> <span class="number">1.0</span>;
  495. <span class="kw">let</span> <span class="ident">f</span> <span class="op">=</span> <span class="ident">x</span>.<span class="ident">sinh</span>();
  496. <span class="comment">// Solving sinh() at 1 gives `(e^2-1)/(2e)`</span>
  497. <span class="kw">let</span> <span class="ident">g</span> <span class="op">=</span> (<span class="ident">e</span><span class="kw-2">*</span><span class="ident">e</span> <span class="op">-</span> <span class="number">1.0</span>)<span class="op">/</span>(<span class="number">2.0</span><span class="kw-2">*</span><span class="ident">e</span>);
  498. <span class="kw">let</span> <span class="ident">abs_difference</span> <span class="op">=</span> (<span class="ident">f</span> <span class="op">-</span> <span class="ident">g</span>).<span class="ident">abs</span>();
  499. <span class="macro">assert</span><span class="macro">!</span>(<span class="ident">abs_difference</span> <span class="op">&lt;</span> <span class="number">1e-10</span>);</pre>
  500. </div><h3 id='tymethod.cosh' class='method'><span id='cosh.v' class='invisible'><code>fn <a href='#tymethod.cosh' class='fnname'>cosh</a>(self) -&gt; Self</code></span></h3><div class='docblock'><p>Hyperbolic cosine function.</p>
  501. <pre class="rust rust-example-rendered">
  502. <span class="kw">use</span> <span class="ident">num_traits</span>::<span class="ident">Float</span>;
  503. <span class="kw">use</span> <span class="ident">std</span>::<span class="ident">f64</span>;
  504. <span class="kw">let</span> <span class="ident">e</span> <span class="op">=</span> <span class="ident">f64</span>::<span class="ident">consts</span>::<span class="ident">E</span>;
  505. <span class="kw">let</span> <span class="ident">x</span> <span class="op">=</span> <span class="number">1.0</span>;
  506. <span class="kw">let</span> <span class="ident">f</span> <span class="op">=</span> <span class="ident">x</span>.<span class="ident">cosh</span>();
  507. <span class="comment">// Solving cosh() at 1 gives this result</span>
  508. <span class="kw">let</span> <span class="ident">g</span> <span class="op">=</span> (<span class="ident">e</span><span class="kw-2">*</span><span class="ident">e</span> <span class="op">+</span> <span class="number">1.0</span>)<span class="op">/</span>(<span class="number">2.0</span><span class="kw-2">*</span><span class="ident">e</span>);
  509. <span class="kw">let</span> <span class="ident">abs_difference</span> <span class="op">=</span> (<span class="ident">f</span> <span class="op">-</span> <span class="ident">g</span>).<span class="ident">abs</span>();
  510. <span class="comment">// Same result</span>
  511. <span class="macro">assert</span><span class="macro">!</span>(<span class="ident">abs_difference</span> <span class="op">&lt;</span> <span class="number">1.0e-10</span>);</pre>
  512. </div><h3 id='tymethod.tanh' class='method'><span id='tanh.v' class='invisible'><code>fn <a href='#tymethod.tanh' class='fnname'>tanh</a>(self) -&gt; Self</code></span></h3><div class='docblock'><p>Hyperbolic tangent function.</p>
  513. <pre class="rust rust-example-rendered">
  514. <span class="kw">use</span> <span class="ident">num_traits</span>::<span class="ident">Float</span>;
  515. <span class="kw">use</span> <span class="ident">std</span>::<span class="ident">f64</span>;
  516. <span class="kw">let</span> <span class="ident">e</span> <span class="op">=</span> <span class="ident">f64</span>::<span class="ident">consts</span>::<span class="ident">E</span>;
  517. <span class="kw">let</span> <span class="ident">x</span> <span class="op">=</span> <span class="number">1.0</span>;
  518. <span class="kw">let</span> <span class="ident">f</span> <span class="op">=</span> <span class="ident">x</span>.<span class="ident">tanh</span>();
  519. <span class="comment">// Solving tanh() at 1 gives `(1 - e^(-2))/(1 + e^(-2))`</span>
  520. <span class="kw">let</span> <span class="ident">g</span> <span class="op">=</span> (<span class="number">1.0</span> <span class="op">-</span> <span class="ident">e</span>.<span class="ident">powi</span>(<span class="op">-</span><span class="number">2</span>))<span class="op">/</span>(<span class="number">1.0</span> <span class="op">+</span> <span class="ident">e</span>.<span class="ident">powi</span>(<span class="op">-</span><span class="number">2</span>));
  521. <span class="kw">let</span> <span class="ident">abs_difference</span> <span class="op">=</span> (<span class="ident">f</span> <span class="op">-</span> <span class="ident">g</span>).<span class="ident">abs</span>();
  522. <span class="macro">assert</span><span class="macro">!</span>(<span class="ident">abs_difference</span> <span class="op">&lt;</span> <span class="number">1.0e-10</span>);</pre>
  523. </div><h3 id='tymethod.asinh' class='method'><span id='asinh.v' class='invisible'><code>fn <a href='#tymethod.asinh' class='fnname'>asinh</a>(self) -&gt; Self</code></span></h3><div class='docblock'><p>Inverse hyperbolic sine function.</p>
  524. <pre class="rust rust-example-rendered">
  525. <span class="kw">use</span> <span class="ident">num_traits</span>::<span class="ident">Float</span>;
  526. <span class="kw">let</span> <span class="ident">x</span> <span class="op">=</span> <span class="number">1.0</span>;
  527. <span class="kw">let</span> <span class="ident">f</span> <span class="op">=</span> <span class="ident">x</span>.<span class="ident">sinh</span>().<span class="ident">asinh</span>();
  528. <span class="kw">let</span> <span class="ident">abs_difference</span> <span class="op">=</span> (<span class="ident">f</span> <span class="op">-</span> <span class="ident">x</span>).<span class="ident">abs</span>();
  529. <span class="macro">assert</span><span class="macro">!</span>(<span class="ident">abs_difference</span> <span class="op">&lt;</span> <span class="number">1.0e-10</span>);</pre>
  530. </div><h3 id='tymethod.acosh' class='method'><span id='acosh.v' class='invisible'><code>fn <a href='#tymethod.acosh' class='fnname'>acosh</a>(self) -&gt; Self</code></span></h3><div class='docblock'><p>Inverse hyperbolic cosine function.</p>
  531. <pre class="rust rust-example-rendered">
  532. <span class="kw">use</span> <span class="ident">num_traits</span>::<span class="ident">Float</span>;
  533. <span class="kw">let</span> <span class="ident">x</span> <span class="op">=</span> <span class="number">1.0</span>;
  534. <span class="kw">let</span> <span class="ident">f</span> <span class="op">=</span> <span class="ident">x</span>.<span class="ident">cosh</span>().<span class="ident">acosh</span>();
  535. <span class="kw">let</span> <span class="ident">abs_difference</span> <span class="op">=</span> (<span class="ident">f</span> <span class="op">-</span> <span class="ident">x</span>).<span class="ident">abs</span>();
  536. <span class="macro">assert</span><span class="macro">!</span>(<span class="ident">abs_difference</span> <span class="op">&lt;</span> <span class="number">1.0e-10</span>);</pre>
  537. </div><h3 id='tymethod.atanh' class='method'><span id='atanh.v' class='invisible'><code>fn <a href='#tymethod.atanh' class='fnname'>atanh</a>(self) -&gt; Self</code></span></h3><div class='docblock'><p>Inverse hyperbolic tangent function.</p>
  538. <pre class="rust rust-example-rendered">
  539. <span class="kw">use</span> <span class="ident">num_traits</span>::<span class="ident">Float</span>;
  540. <span class="kw">use</span> <span class="ident">std</span>::<span class="ident">f64</span>;
  541. <span class="kw">let</span> <span class="ident">e</span> <span class="op">=</span> <span class="ident">f64</span>::<span class="ident">consts</span>::<span class="ident">E</span>;
  542. <span class="kw">let</span> <span class="ident">f</span> <span class="op">=</span> <span class="ident">e</span>.<span class="ident">tanh</span>().<span class="ident">atanh</span>();
  543. <span class="kw">let</span> <span class="ident">abs_difference</span> <span class="op">=</span> (<span class="ident">f</span> <span class="op">-</span> <span class="ident">e</span>).<span class="ident">abs</span>();
  544. <span class="macro">assert</span><span class="macro">!</span>(<span class="ident">abs_difference</span> <span class="op">&lt;</span> <span class="number">1.0e-10</span>);</pre>
  545. </div><h3 id='tymethod.integer_decode' class='method'><span id='integer_decode.v' class='invisible'><code>fn <a href='#tymethod.integer_decode' class='fnname'>integer_decode</a>(self) -&gt; <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.tuple.html">(</a><a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.u64.html">u64</a>, <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.i16.html">i16</a>, <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.i8.html">i8</a><a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.tuple.html">)</a></code></span></h3><div class='docblock'><p>Returns the mantissa, base 2 exponent, and sign as integers, respectively.
  546. The original number can be recovered by <code>sign * mantissa * 2 ^ exponent</code>.</p>
  547. <pre class="rust rust-example-rendered">
  548. <span class="kw">use</span> <span class="ident">num_traits</span>::<span class="ident">Float</span>;
  549. <span class="kw">let</span> <span class="ident">num</span> <span class="op">=</span> <span class="number">2.0f32</span>;
  550. <span class="comment">// (8388608, -22, 1)</span>
  551. <span class="kw">let</span> (<span class="ident">mantissa</span>, <span class="ident">exponent</span>, <span class="ident">sign</span>) <span class="op">=</span> <span class="ident">Float</span>::<span class="ident">integer_decode</span>(<span class="ident">num</span>);
  552. <span class="kw">let</span> <span class="ident">sign_f</span> <span class="op">=</span> <span class="ident">sign</span> <span class="kw">as</span> <span class="ident">f32</span>;
  553. <span class="kw">let</span> <span class="ident">mantissa_f</span> <span class="op">=</span> <span class="ident">mantissa</span> <span class="kw">as</span> <span class="ident">f32</span>;
  554. <span class="kw">let</span> <span class="ident">exponent_f</span> <span class="op">=</span> <span class="ident">num</span>.<span class="ident">powf</span>(<span class="ident">exponent</span> <span class="kw">as</span> <span class="ident">f32</span>);
  555. <span class="comment">// 1 * 8388608 * 2^(-22) == 2</span>
  556. <span class="kw">let</span> <span class="ident">abs_difference</span> <span class="op">=</span> (<span class="ident">sign_f</span> <span class="op">*</span> <span class="ident">mantissa_f</span> <span class="op">*</span> <span class="ident">exponent_f</span> <span class="op">-</span> <span class="ident">num</span>).<span class="ident">abs</span>();
  557. <span class="macro">assert</span><span class="macro">!</span>(<span class="ident">abs_difference</span> <span class="op">&lt;</span> <span class="number">1e-10</span>);</pre>
  558. </div></div>
  559. <h2 id='provided-methods' class='small-section-header'>
  560. Provided Methods<a href='#provided-methods' class='anchor'></a>
  561. </h2>
  562. <div class='methods'>
  563. <h3 id='method.epsilon' class='method'><span id='epsilon.v' class='invisible'><code>fn <a href='#method.epsilon' class='fnname'>epsilon</a>() -&gt; Self</code></span></h3><div class='docblock'><p>Returns epsilon, a small positive value.</p>
  564. <pre class="rust rust-example-rendered">
  565. <span class="kw">use</span> <span class="ident">num_traits</span>::<span class="ident">Float</span>;
  566. <span class="kw">use</span> <span class="ident">std</span>::<span class="ident">f64</span>;
  567. <span class="kw">let</span> <span class="ident">x</span>: <span class="ident">f64</span> <span class="op">=</span> <span class="ident">Float</span>::<span class="ident">epsilon</span>();
  568. <span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">x</span>, <span class="ident">f64</span>::<span class="ident">EPSILON</span>);</pre>
  569. <h1 id="panics" class="section-header"><a href="#panics">Panics</a></h1>
  570. <p>The default implementation will panic if <code>f32::EPSILON</code> cannot
  571. be cast to <code>Self</code>.</p>
  572. </div><h3 id='method.to_degrees' class='method'><span id='to_degrees.v' class='invisible'><code>fn <a href='#method.to_degrees' class='fnname'>to_degrees</a>(self) -&gt; Self</code></span></h3><div class='docblock'><p>Converts radians to degrees.</p>
  573. <pre class="rust rust-example-rendered">
  574. <span class="kw">use</span> <span class="ident">std</span>::<span class="ident">f64</span>::<span class="ident">consts</span>;
  575. <span class="kw">let</span> <span class="ident">angle</span> <span class="op">=</span> <span class="ident">consts</span>::<span class="ident">PI</span>;
  576. <span class="kw">let</span> <span class="ident">abs_difference</span> <span class="op">=</span> (<span class="ident">angle</span>.<span class="ident">to_degrees</span>() <span class="op">-</span> <span class="number">180.0</span>).<span class="ident">abs</span>();
  577. <span class="macro">assert</span><span class="macro">!</span>(<span class="ident">abs_difference</span> <span class="op">&lt;</span> <span class="number">1e-10</span>);</pre>
  578. </div><h3 id='method.to_radians' class='method'><span id='to_radians.v' class='invisible'><code>fn <a href='#method.to_radians' class='fnname'>to_radians</a>(self) -&gt; Self</code></span></h3><div class='docblock'><p>Converts degrees to radians.</p>
  579. <pre class="rust rust-example-rendered">
  580. <span class="kw">use</span> <span class="ident">std</span>::<span class="ident">f64</span>::<span class="ident">consts</span>;
  581. <span class="kw">let</span> <span class="ident">angle</span> <span class="op">=</span> <span class="number">180.0_f64</span>;
  582. <span class="kw">let</span> <span class="ident">abs_difference</span> <span class="op">=</span> (<span class="ident">angle</span>.<span class="ident">to_radians</span>() <span class="op">-</span> <span class="ident">consts</span>::<span class="ident">PI</span>).<span class="ident">abs</span>();
  583. <span class="macro">assert</span><span class="macro">!</span>(<span class="ident">abs_difference</span> <span class="op">&lt;</span> <span class="number">1e-10</span>);</pre>
  584. </div></div>
  585. <h2 id='foreign-impls' class='small-section-header'>
  586. Implementations on Foreign Types<a href='#foreign-impls' class='anchor'></a>
  587. </h2>
  588. <h3 id='impl-Float' class='impl'><span class='in-band'><table class='table-display'><tbody><tr><td><code>impl <a class="trait" href="../num/traits/float/trait.Float.html" title="trait num::traits::float::Float">Float</a> for <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.f32.html">f32</a></code><a href='#impl-Float' class='anchor'></a></span></td><td><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/num_traits/float.rs.html#1806-1878' title='goto source code'>[src]</a></span></td></tr></tbody></table></h3><span class='docblock autohide'><div class='impl-items'><h4 id='method.nan' class="method"><span id='nan.v-1' class='invisible'><table class='table-display'><tbody><tr><td><code>fn <a href='#method.nan' class='fnname'>nan</a>() -&gt; <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.f32.html">f32</a></code></span></td><td><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/num_traits/macros.rs.html#33-35' title='goto source code'>[src]</a></td></tr></tbody></table></span></h4><h4 id='method.infinity' class="method"><span id='infinity.v-1' class='invisible'><table class='table-display'><tbody><tr><td><code>fn <a href='#method.infinity' class='fnname'>infinity</a>() -&gt; <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.f32.html">f32</a></code></span></td><td><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/num_traits/macros.rs.html#33-35' title='goto source code'>[src]</a></td></tr></tbody></table></span></h4><h4 id='method.neg_infinity' class="method"><span id='neg_infinity.v-1' class='invisible'><table class='table-display'><tbody><tr><td><code>fn <a href='#method.neg_infinity' class='fnname'>neg_infinity</a>() -&gt; <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.f32.html">f32</a></code></span></td><td><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/num_traits/macros.rs.html#33-35' title='goto source code'>[src]</a></td></tr></tbody></table></span></h4><h4 id='method.neg_zero' class="method"><span id='neg_zero.v-1' class='invisible'><table class='table-display'><tbody><tr><td><code>fn <a href='#method.neg_zero' class='fnname'>neg_zero</a>() -&gt; <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.f32.html">f32</a></code></span></td><td><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/num_traits/macros.rs.html#33-35' title='goto source code'>[src]</a></td></tr></tbody></table></span></h4><h4 id='method.min_value' class="method"><span id='min_value.v-1' class='invisible'><table class='table-display'><tbody><tr><td><code>fn <a href='#method.min_value' class='fnname'>min_value</a>() -&gt; <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.f32.html">f32</a></code></span></td><td><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/num_traits/macros.rs.html#33-35' title='goto source code'>[src]</a></td></tr></tbody></table></span></h4><h4 id='method.min_positive_value' class="method"><span id='min_positive_value.v-1' class='invisible'><table class='table-display'><tbody><tr><td><code>fn <a href='#method.min_positive_value' class='fnname'>min_positive_value</a>() -&gt; <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.f32.html">f32</a></code></span></td><td><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/num_traits/macros.rs.html#33-35' title='goto source code'>[src]</a></td></tr></tbody></table></span></h4><h4 id='method.epsilon-1' class="method"><span id='epsilon.v-1' class='invisible'><table class='table-display'><tbody><tr><td><code>fn <a href='#method.epsilon' class='fnname'>epsilon</a>() -&gt; <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.f32.html">f32</a></code></span></td><td><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/num_traits/macros.rs.html#33-35' title='goto source code'>[src]</a></td></tr></tbody></table></span></h4><h4 id='method.max_value' class="method"><span id='max_value.v-1' class='invisible'><table class='table-display'><tbody><tr><td><code>fn <a href='#method.max_value' class='fnname'>max_value</a>() -&gt; <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.f32.html">f32</a></code></span></td><td><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/num_traits/macros.rs.html#33-35' title='goto source code'>[src]</a></td></tr></tbody></table></span></h4><h4 id='method.abs_sub' class="method"><span id='abs_sub.v-1' class='invisible'><table class='table-display'><tbody><tr><td><code>fn <a href='#method.abs_sub' class='fnname'>abs_sub</a>(self, other: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.f32.html">f32</a>) -&gt; <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.f32.html">f32</a></code></span></td><td><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/num_traits/float.rs.html#1820-1822' title='goto source code'>[src]</a></td></tr></tbody></table></span></h4><h4 id='method.integer_decode' class="method"><span id='integer_decode.v-1' class='invisible'><table class='table-display'><tbody><tr><td><code>fn <a href='#method.integer_decode' class='fnname'>integer_decode</a>(self) -&gt; <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.tuple.html">(</a><a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.u64.html">u64</a>, <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.i16.html">i16</a>, <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.i8.html">i8</a><a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.tuple.html">)</a></code></span></td><td><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/num_traits/float.rs.html#1825-1827' title='goto source code'>[src]</a></td></tr></tbody></table></span></h4><h4 id='method.is_nan' class="method"><span id='is_nan.v-1' class='invisible'><table class='table-display'><tbody><tr><td><code>fn <a href='#method.is_nan' class='fnname'>is_nan</a>(self) -&gt; <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.bool.html">bool</a></code></span></td><td><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/num_traits/macros.rs.html#9-11' title='goto source code'>[src]</a></td></tr></tbody></table></span></h4><h4 id='method.is_infinite' class="method"><span id='is_infinite.v-1' class='invisible'><table class='table-display'><tbody><tr><td><code>fn <a href='#method.is_infinite' class='fnname'>is_infinite</a>(self) -&gt; <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.bool.html">bool</a></code></span></td><td><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/num_traits/macros.rs.html#9-11' title='goto source code'>[src]</a></td></tr></tbody></table></span></h4><h4 id='method.is_finite' class="method"><span id='is_finite.v-1' class='invisible'><table class='table-display'><tbody><tr><td><code>fn <a href='#method.is_finite' class='fnname'>is_finite</a>(self) -&gt; <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.bool.html">bool</a></code></span></td><td><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/num_traits/macros.rs.html#9-11' title='goto source code'>[src]</a></td></tr></tbody></table></span></h4><h4 id='method.is_normal' class="method"><span id='is_normal.v-1' class='invisible'><table class='table-display'><tbody><tr><td><code>fn <a href='#method.is_normal' class='fnname'>is_normal</a>(self) -&gt; <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.bool.html">bool</a></code></span></td><td><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/num_traits/macros.rs.html#9-11' title='goto source code'>[src]</a></td></tr></tbody></table></span></h4><h4 id='method.classify' class="method"><span id='classify.v-1' class='invisible'><table class='table-display'><tbody><tr><td><code>fn <a href='#method.classify' class='fnname'>classify</a>(self) -&gt; <a class="enum" href="https://doc.rust-lang.org/nightly/core/num/enum.FpCategory.html" title="enum core::num::FpCategory">FpCategory</a></code></span></td><td><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/num_traits/macros.rs.html#9-11' title='goto source code'>[src]</a></td></tr></tbody></table></span></h4><h4 id='method.floor' class="method"><span id='floor.v-1' class='invisible'><table class='table-display'><tbody><tr><td><code>fn <a href='#method.floor' class='fnname'>floor</a>(self) -&gt; <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.f32.html">f32</a></code></span></td><td><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/num_traits/macros.rs.html#9-11' title='goto source code'>[src]</a></td></tr></tbody></table></span></h4><h4 id='method.ceil' class="method"><span id='ceil.v-1' class='invisible'><table class='table-display'><tbody><tr><td><code>fn <a href='#method.ceil' class='fnname'>ceil</a>(self) -&gt; <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.f32.html">f32</a></code></span></td><td><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/num_traits/macros.rs.html#9-11' title='goto source code'>[src]</a></td></tr></tbody></table></span></h4><h4 id='method.round' class="method"><span id='round.v-1' class='invisible'><table class='table-display'><tbody><tr><td><code>fn <a href='#method.round' class='fnname'>round</a>(self) -&gt; <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.f32.html">f32</a></code></span></td><td><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/num_traits/macros.rs.html#9-11' title='goto source code'>[src]</a></td></tr></tbody></table></span></h4><h4 id='method.trunc' class="method"><span id='trunc.v-1' class='invisible'><table class='table-display'><tbody><tr><td><code>fn <a href='#method.trunc' class='fnname'>trunc</a>(self) -&gt; <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.f32.html">f32</a></code></span></td><td><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/num_traits/macros.rs.html#9-11' title='goto source code'>[src]</a></td></tr></tbody></table></span></h4><h4 id='method.fract' class="method"><span id='fract.v-1' class='invisible'><table class='table-display'><tbody><tr><td><code>fn <a href='#method.fract' class='fnname'>fract</a>(self) -&gt; <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.f32.html">f32</a></code></span></td><td><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/num_traits/macros.rs.html#9-11' title='goto source code'>[src]</a></td></tr></tbody></table></span></h4><h4 id='method.abs' class="method"><span id='abs.v-1' class='invisible'><table class='table-display'><tbody><tr><td><code>fn <a href='#method.abs' class='fnname'>abs</a>(self) -&gt; <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.f32.html">f32</a></code></span></td><td><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/num_traits/macros.rs.html#9-11' title='goto source code'>[src]</a></td></tr></tbody></table></span></h4><h4 id='method.signum' class="method"><span id='signum.v-1' class='invisible'><table class='table-display'><tbody><tr><td><code>fn <a href='#method.signum' class='fnname'>signum</a>(self) -&gt; <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.f32.html">f32</a></code></span></td><td><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/num_traits/macros.rs.html#9-11' title='goto source code'>[src]</a></td></tr></tbody></table></span></h4><h4 id='method.is_sign_positive' class="method"><span id='is_sign_positive.v-1' class='invisible'><table class='table-display'><tbody><tr><td><code>fn <a href='#method.is_sign_positive' class='fnname'>is_sign_positive</a>(self) -&gt; <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.bool.html">bool</a></code></span></td><td><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/num_traits/macros.rs.html#9-11' title='goto source code'>[src]</a></td></tr></tbody></table></span></h4><h4 id='method.is_sign_negative' class="method"><span id='is_sign_negative.v-1' class='invisible'><table class='table-display'><tbody><tr><td><code>fn <a href='#method.is_sign_negative' class='fnname'>is_sign_negative</a>(self) -&gt; <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.bool.html">bool</a></code></span></td><td><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/num_traits/macros.rs.html#9-11' title='goto source code'>[src]</a></td></tr></tbody></table></span></h4><h4 id='method.mul_add' class="method"><span id='mul_add.v-1' class='invisible'><table class='table-display'><tbody><tr><td><code>fn <a href='#method.mul_add' class='fnname'>mul_add</a>(self, a: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.f32.html">f32</a>, b: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.f32.html">f32</a>) -&gt; <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.f32.html">f32</a></code></span></td><td><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/num_traits/macros.rs.html#9-11' title='goto source code'>[src]</a></td></tr></tbody></table></span></h4><h4 id='method.recip' class="method"><span id='recip.v-1' class='invisible'><table class='table-display'><tbody><tr><td><code>fn <a href='#method.recip' class='fnname'>recip</a>(self) -&gt; <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.f32.html">f32</a></code></span></td><td><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/num_traits/macros.rs.html#9-11' title='goto source code'>[src]</a></td></tr></tbody></table></span></h4><h4 id='method.powi' class="method"><span id='powi.v-1' class='invisible'><table class='table-display'><tbody><tr><td><code>fn <a href='#method.powi' class='fnname'>powi</a>(self, n: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.i32.html">i32</a>) -&gt; <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.f32.html">f32</a></code></span></td><td><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/num_traits/macros.rs.html#9-11' title='goto source code'>[src]</a></td></tr></tbody></table></span></h4><h4 id='method.powf' class="method"><span id='powf.v-1' class='invisible'><table class='table-display'><tbody><tr><td><code>fn <a href='#method.powf' class='fnname'>powf</a>(self, n: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.f32.html">f32</a>) -&gt; <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.f32.html">f32</a></code></span></td><td><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/num_traits/macros.rs.html#9-11' title='goto source code'>[src]</a></td></tr></tbody></table></span></h4><h4 id='method.sqrt' class="method"><span id='sqrt.v-1' class='invisible'><table class='table-display'><tbody><tr><td><code>fn <a href='#method.sqrt' class='fnname'>sqrt</a>(self) -&gt; <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.f32.html">f32</a></code></span></td><td><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/num_traits/macros.rs.html#9-11' title='goto source code'>[src]</a></td></tr></tbody></table></span></h4><h4 id='method.exp' class="method"><span id='exp.v-1' class='invisible'><table class='table-display'><tbody><tr><td><code>fn <a href='#method.exp' class='fnname'>exp</a>(self) -&gt; <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.f32.html">f32</a></code></span></td><td><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/num_traits/macros.rs.html#9-11' title='goto source code'>[src]</a></td></tr></tbody></table></span></h4><h4 id='method.exp2' class="method"><span id='exp2.v-1' class='invisible'><table class='table-display'><tbody><tr><td><code>fn <a href='#method.exp2' class='fnname'>exp2</a>(self) -&gt; <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.f32.html">f32</a></code></span></td><td><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/num_traits/macros.rs.html#9-11' title='goto source code'>[src]</a></td></tr></tbody></table></span></h4><h4 id='method.ln' class="method"><span id='ln.v-1' class='invisible'><table class='table-display'><tbody><tr><td><code>fn <a href='#method.ln' class='fnname'>ln</a>(self) -&gt; <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.f32.html">f32</a></code></span></td><td><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/num_traits/macros.rs.html#9-11' title='goto source code'>[src]</a></td></tr></tbody></table></span></h4><h4 id='method.log' class="method"><span id='log.v-1' class='invisible'><table class='table-display'><tbody><tr><td><code>fn <a href='#method.log' class='fnname'>log</a>(self, base: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.f32.html">f32</a>) -&gt; <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.f32.html">f32</a></code></span></td><td><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/num_traits/macros.rs.html#9-11' title='goto source code'>[src]</a></td></tr></tbody></table></span></h4><h4 id='method.log2' class="method"><span id='log2.v-1' class='invisible'><table class='table-display'><tbody><tr><td><code>fn <a href='#method.log2' class='fnname'>log2</a>(self) -&gt; <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.f32.html">f32</a></code></span></td><td><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/num_traits/macros.rs.html#9-11' title='goto source code'>[src]</a></td></tr></tbody></table></span></h4><h4 id='method.log10' class="method"><span id='log10.v-1' class='invisible'><table class='table-display'><tbody><tr><td><code>fn <a href='#method.log10' class='fnname'>log10</a>(self) -&gt; <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.f32.html">f32</a></code></span></td><td><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/num_traits/macros.rs.html#9-11' title='goto source code'>[src]</a></td></tr></tbody></table></span></h4><h4 id='method.to_degrees-1' class="method"><span id='to_degrees.v-1' class='invisible'><table class='table-display'><tbody><tr><td><code>fn <a href='#method.to_degrees' class='fnname'>to_degrees</a>(self) -&gt; <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.f32.html">f32</a></code></span></td><td><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/num_traits/macros.rs.html#9-11' title='goto source code'>[src]</a></td></tr></tbody></table></span></h4><h4 id='method.to_radians-1' class="method"><span id='to_radians.v-1' class='invisible'><table class='table-display'><tbody><tr><td><code>fn <a href='#method.to_radians' class='fnname'>to_radians</a>(self) -&gt; <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.f32.html">f32</a></code></span></td><td><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/num_traits/macros.rs.html#9-11' title='goto source code'>[src]</a></td></tr></tbody></table></span></h4><h4 id='method.max' class="method"><span id='max.v-1' class='invisible'><table class='table-display'><tbody><tr><td><code>fn <a href='#method.max' class='fnname'>max</a>(self, other: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.f32.html">f32</a>) -&gt; <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.f32.html">f32</a></code></span></td><td><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/num_traits/macros.rs.html#9-11' title='goto source code'>[src]</a></td></tr></tbody></table></span></h4><h4 id='method.min' class="method"><span id='min.v-1' class='invisible'><table class='table-display'><tbody><tr><td><code>fn <a href='#method.min' class='fnname'>min</a>(self, other: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.f32.html">f32</a>) -&gt; <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.f32.html">f32</a></code></span></td><td><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/num_traits/macros.rs.html#9-11' title='goto source code'>[src]</a></td></tr></tbody></table></span></h4><h4 id='method.cbrt' class="method"><span id='cbrt.v-1' class='invisible'><table class='table-display'><tbody><tr><td><code>fn <a href='#method.cbrt' class='fnname'>cbrt</a>(self) -&gt; <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.f32.html">f32</a></code></span></td><td><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/num_traits/macros.rs.html#9-11' title='goto source code'>[src]</a></td></tr></tbody></table></span></h4><h4 id='method.hypot' class="method"><span id='hypot.v-1' class='invisible'><table class='table-display'><tbody><tr><td><code>fn <a href='#method.hypot' class='fnname'>hypot</a>(self, other: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.f32.html">f32</a>) -&gt; <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.f32.html">f32</a></code></span></td><td><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/num_traits/macros.rs.html#9-11' title='goto source code'>[src]</a></td></tr></tbody></table></span></h4><h4 id='method.sin' class="method"><span id='sin.v-1' class='invisible'><table class='table-display'><tbody><tr><td><code>fn <a href='#method.sin' class='fnname'>sin</a>(self) -&gt; <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.f32.html">f32</a></code></span></td><td><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/num_traits/macros.rs.html#9-11' title='goto source code'>[src]</a></td></tr></tbody></table></span></h4><h4 id='method.cos' class="method"><span id='cos.v-1' class='invisible'><table class='table-display'><tbody><tr><td><code>fn <a href='#method.cos' class='fnname'>cos</a>(self) -&gt; <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.f32.html">f32</a></code></span></td><td><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/num_traits/macros.rs.html#9-11' title='goto source code'>[src]</a></td></tr></tbody></table></span></h4><h4 id='method.tan' class="method"><span id='tan.v-1' class='invisible'><table class='table-display'><tbody><tr><td><code>fn <a href='#method.tan' class='fnname'>tan</a>(self) -&gt; <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.f32.html">f32</a></code></span></td><td><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/num_traits/macros.rs.html#9-11' title='goto source code'>[src]</a></td></tr></tbody></table></span></h4><h4 id='method.asin' class="method"><span id='asin.v-1' class='invisible'><table class='table-display'><tbody><tr><td><code>fn <a href='#method.asin' class='fnname'>asin</a>(self) -&gt; <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.f32.html">f32</a></code></span></td><td><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/num_traits/macros.rs.html#9-11' title='goto source code'>[src]</a></td></tr></tbody></table></span></h4><h4 id='method.acos' class="method"><span id='acos.v-1' class='invisible'><table class='table-display'><tbody><tr><td><code>fn <a href='#method.acos' class='fnname'>acos</a>(self) -&gt; <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.f32.html">f32</a></code></span></td><td><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/num_traits/macros.rs.html#9-11' title='goto source code'>[src]</a></td></tr></tbody></table></span></h4><h4 id='method.atan' class="method"><span id='atan.v-1' class='invisible'><table class='table-display'><tbody><tr><td><code>fn <a href='#method.atan' class='fnname'>atan</a>(self) -&gt; <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.f32.html">f32</a></code></span></td><td><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/num_traits/macros.rs.html#9-11' title='goto source code'>[src]</a></td></tr></tbody></table></span></h4><h4 id='method.atan2' class="method"><span id='atan2.v-1' class='invisible'><table class='table-display'><tbody><tr><td><code>fn <a href='#method.atan2' class='fnname'>atan2</a>(self, other: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.f32.html">f32</a>) -&gt; <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.f32.html">f32</a></code></span></td><td><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/num_traits/macros.rs.html#9-11' title='goto source code'>[src]</a></td></tr></tbody></table></span></h4><h4 id='method.sin_cos' class="method"><span id='sin_cos.v-1' class='invisible'><table class='table-display'><tbody><tr><td><code>fn <a href='#method.sin_cos' class='fnname'>sin_cos</a>(self) -&gt; <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.tuple.html">(</a><a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.f32.html">f32</a>, <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.f32.html">f32</a><a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.tuple.html">)</a></code></span></td><td><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/num_traits/macros.rs.html#9-11' title='goto source code'>[src]</a></td></tr></tbody></table></span></h4><h4 id='method.exp_m1' class="method"><span id='exp_m1.v-1' class='invisible'><table class='table-display'><tbody><tr><td><code>fn <a href='#method.exp_m1' class='fnname'>exp_m1</a>(self) -&gt; <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.f32.html">f32</a></code></span></td><td><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/num_traits/macros.rs.html#9-11' title='goto source code'>[src]</a></td></tr></tbody></table></span></h4><h4 id='method.ln_1p' class="method"><span id='ln_1p.v-1' class='invisible'><table class='table-display'><tbody><tr><td><code>fn <a href='#method.ln_1p' class='fnname'>ln_1p</a>(self) -&gt; <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.f32.html">f32</a></code></span></td><td><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/num_traits/macros.rs.html#9-11' title='goto source code'>[src]</a></td></tr></tbody></table></span></h4><h4 id='method.sinh' class="method"><span id='sinh.v-1' class='invisible'><table class='table-display'><tbody><tr><td><code>fn <a href='#method.sinh' class='fnname'>sinh</a>(self) -&gt; <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.f32.html">f32</a></code></span></td><td><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/num_traits/macros.rs.html#9-11' title='goto source code'>[src]</a></td></tr></tbody></table></span></h4><h4 id='method.cosh' class="method"><span id='cosh.v-1' class='invisible'><table class='table-display'><tbody><tr><td><code>fn <a href='#method.cosh' class='fnname'>cosh</a>(self) -&gt; <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.f32.html">f32</a></code></span></td><td><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/num_traits/macros.rs.html#9-11' title='goto source code'>[src]</a></td></tr></tbody></table></span></h4><h4 id='method.tanh' class="method"><span id='tanh.v-1' class='invisible'><table class='table-display'><tbody><tr><td><code>fn <a href='#method.tanh' class='fnname'>tanh</a>(self) -&gt; <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.f32.html">f32</a></code></span></td><td><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/num_traits/macros.rs.html#9-11' title='goto source code'>[src]</a></td></tr></tbody></table></span></h4><h4 id='method.asinh' class="method"><span id='asinh.v-1' class='invisible'><table class='table-display'><tbody><tr><td><code>fn <a href='#method.asinh' class='fnname'>asinh</a>(self) -&gt; <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.f32.html">f32</a></code></span></td><td><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/num_traits/macros.rs.html#9-11' title='goto source code'>[src]</a></td></tr></tbody></table></span></h4><h4 id='method.acosh' class="method"><span id='acosh.v-1' class='invisible'><table class='table-display'><tbody><tr><td><code>fn <a href='#method.acosh' class='fnname'>acosh</a>(self) -&gt; <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.f32.html">f32</a></code></span></td><td><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/num_traits/macros.rs.html#9-11' title='goto source code'>[src]</a></td></tr></tbody></table></span></h4><h4 id='method.atanh' class="method"><span id='atanh.v-1' class='invisible'><table class='table-display'><tbody><tr><td><code>fn <a href='#method.atanh' class='fnname'>atanh</a>(self) -&gt; <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.f32.html">f32</a></code></span></td><td><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/num_traits/macros.rs.html#9-11' title='goto source code'>[src]</a></td></tr></tbody></table></span></h4></div></span><h3 id='impl-Float-1' class='impl'><span class='in-band'><table class='table-display'><tbody><tr><td><code>impl <a class="trait" href="../num/traits/float/trait.Float.html" title="trait num::traits::float::Float">Float</a> for <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.f64.html">f64</a></code><a href='#impl-Float-1' class='anchor'></a></span></td><td><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/num_traits/float.rs.html#1806-1878' title='goto source code'>[src]</a></span></td></tr></tbody></table></h3><span class='docblock autohide'><div class='impl-items'><h4 id='method.nan-1' class="method"><span id='nan.v-2' class='invisible'><table class='table-display'><tbody><tr><td><code>fn <a href='#method.nan' class='fnname'>nan</a>() -&gt; <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.f64.html">f64</a></code></span></td><td><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/num_traits/macros.rs.html#33-35' title='goto source code'>[src]</a></td></tr></tbody></table></span></h4><h4 id='method.infinity-1' class="method"><span id='infinity.v-2' class='invisible'><table class='table-display'><tbody><tr><td><code>fn <a href='#method.infinity' class='fnname'>infinity</a>() -&gt; <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.f64.html">f64</a></code></span></td><td><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/num_traits/macros.rs.html#33-35' title='goto source code'>[src]</a></td></tr></tbody></table></span></h4><h4 id='method.neg_infinity-1' class="method"><span id='neg_infinity.v-2' class='invisible'><table class='table-display'><tbody><tr><td><code>fn <a href='#method.neg_infinity' class='fnname'>neg_infinity</a>() -&gt; <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.f64.html">f64</a></code></span></td><td><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/num_traits/macros.rs.html#33-35' title='goto source code'>[src]</a></td></tr></tbody></table></span></h4><h4 id='method.neg_zero-1' class="method"><span id='neg_zero.v-2' class='invisible'><table class='table-display'><tbody><tr><td><code>fn <a href='#method.neg_zero' class='fnname'>neg_zero</a>() -&gt; <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.f64.html">f64</a></code></span></td><td><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/num_traits/macros.rs.html#33-35' title='goto source code'>[src]</a></td></tr></tbody></table></span></h4><h4 id='method.min_value-1' class="method"><span id='min_value.v-2' class='invisible'><table class='table-display'><tbody><tr><td><code>fn <a href='#method.min_value' class='fnname'>min_value</a>() -&gt; <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.f64.html">f64</a></code></span></td><td><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/num_traits/macros.rs.html#33-35' title='goto source code'>[src]</a></td></tr></tbody></table></span></h4><h4 id='method.min_positive_value-1' class="method"><span id='min_positive_value.v-2' class='invisible'><table class='table-display'><tbody><tr><td><code>fn <a href='#method.min_positive_value' class='fnname'>min_positive_value</a>() -&gt; <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.f64.html">f64</a></code></span></td><td><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/num_traits/macros.rs.html#33-35' title='goto source code'>[src]</a></td></tr></tbody></table></span></h4><h4 id='method.epsilon-2' class="method"><span id='epsilon.v-2' class='invisible'><table class='table-display'><tbody><tr><td><code>fn <a href='#method.epsilon' class='fnname'>epsilon</a>() -&gt; <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.f64.html">f64</a></code></span></td><td><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/num_traits/macros.rs.html#33-35' title='goto source code'>[src]</a></td></tr></tbody></table></span></h4><h4 id='method.max_value-1' class="method"><span id='max_value.v-2' class='invisible'><table class='table-display'><tbody><tr><td><code>fn <a href='#method.max_value' class='fnname'>max_value</a>() -&gt; <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.f64.html">f64</a></code></span></td><td><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/num_traits/macros.rs.html#33-35' title='goto source code'>[src]</a></td></tr></tbody></table></span></h4><h4 id='method.abs_sub-1' class="method"><span id='abs_sub.v-2' class='invisible'><table class='table-display'><tbody><tr><td><code>fn <a href='#method.abs_sub' class='fnname'>abs_sub</a>(self, other: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.f64.html">f64</a>) -&gt; <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.f64.html">f64</a></code></span></td><td><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/num_traits/float.rs.html#1820-1822' title='goto source code'>[src]</a></td></tr></tbody></table></span></h4><h4 id='method.integer_decode-1' class="method"><span id='integer_decode.v-2' class='invisible'><table class='table-display'><tbody><tr><td><code>fn <a href='#method.integer_decode' class='fnname'>integer_decode</a>(self) -&gt; <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.tuple.html">(</a><a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.u64.html">u64</a>, <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.i16.html">i16</a>, <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.i8.html">i8</a><a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.tuple.html">)</a></code></span></td><td><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/num_traits/float.rs.html#1825-1827' title='goto source code'>[src]</a></td></tr></tbody></table></span></h4><h4 id='method.is_nan-1' class="method"><span id='is_nan.v-2' class='invisible'><table class='table-display'><tbody><tr><td><code>fn <a href='#method.is_nan' class='fnname'>is_nan</a>(self) -&gt; <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.bool.html">bool</a></code></span></td><td><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/num_traits/macros.rs.html#9-11' title='goto source code'>[src]</a></td></tr></tbody></table></span></h4><h4 id='method.is_infinite-1' class="method"><span id='is_infinite.v-2' class='invisible'><table class='table-display'><tbody><tr><td><code>fn <a href='#method.is_infinite' class='fnname'>is_infinite</a>(self) -&gt; <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.bool.html">bool</a></code></span></td><td><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/num_traits/macros.rs.html#9-11' title='goto source code'>[src]</a></td></tr></tbody></table></span></h4><h4 id='method.is_finite-1' class="method"><span id='is_finite.v-2' class='invisible'><table class='table-display'><tbody><tr><td><code>fn <a href='#method.is_finite' class='fnname'>is_finite</a>(self) -&gt; <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.bool.html">bool</a></code></span></td><td><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/num_traits/macros.rs.html#9-11' title='goto source code'>[src]</a></td></tr></tbody></table></span></h4><h4 id='method.is_normal-1' class="method"><span id='is_normal.v-2' class='invisible'><table class='table-display'><tbody><tr><td><code>fn <a href='#method.is_normal' class='fnname'>is_normal</a>(self) -&gt; <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.bool.html">bool</a></code></span></td><td><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/num_traits/macros.rs.html#9-11' title='goto source code'>[src]</a></td></tr></tbody></table></span></h4><h4 id='method.classify-1' class="method"><span id='classify.v-2' class='invisible'><table class='table-display'><tbody><tr><td><code>fn <a href='#method.classify' class='fnname'>classify</a>(self) -&gt; <a class="enum" href="https://doc.rust-lang.org/nightly/core/num/enum.FpCategory.html" title="enum core::num::FpCategory">FpCategory</a></code></span></td><td><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/num_traits/macros.rs.html#9-11' title='goto source code'>[src]</a></td></tr></tbody></table></span></h4><h4 id='method.floor-1' class="method"><span id='floor.v-2' class='invisible'><table class='table-display'><tbody><tr><td><code>fn <a href='#method.floor' class='fnname'>floor</a>(self) -&gt; <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.f64.html">f64</a></code></span></td><td><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/num_traits/macros.rs.html#9-11' title='goto source code'>[src]</a></td></tr></tbody></table></span></h4><h4 id='method.ceil-1' class="method"><span id='ceil.v-2' class='invisible'><table class='table-display'><tbody><tr><td><code>fn <a href='#method.ceil' class='fnname'>ceil</a>(self) -&gt; <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.f64.html">f64</a></code></span></td><td><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/num_traits/macros.rs.html#9-11' title='goto source code'>[src]</a></td></tr></tbody></table></span></h4><h4 id='method.round-1' class="method"><span id='round.v-2' class='invisible'><table class='table-display'><tbody><tr><td><code>fn <a href='#method.round' class='fnname'>round</a>(self) -&gt; <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.f64.html">f64</a></code></span></td><td><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/num_traits/macros.rs.html#9-11' title='goto source code'>[src]</a></td></tr></tbody></table></span></h4><h4 id='method.trunc-1' class="method"><span id='trunc.v-2' class='invisible'><table class='table-display'><tbody><tr><td><code>fn <a href='#method.trunc' class='fnname'>trunc</a>(self) -&gt; <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.f64.html">f64</a></code></span></td><td><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/num_traits/macros.rs.html#9-11' title='goto source code'>[src]</a></td></tr></tbody></table></span></h4><h4 id='method.fract-1' class="method"><span id='fract.v-2' class='invisible'><table class='table-display'><tbody><tr><td><code>fn <a href='#method.fract' class='fnname'>fract</a>(self) -&gt; <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.f64.html">f64</a></code></span></td><td><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/num_traits/macros.rs.html#9-11' title='goto source code'>[src]</a></td></tr></tbody></table></span></h4><h4 id='method.abs-1' class="method"><span id='abs.v-2' class='invisible'><table class='table-display'><tbody><tr><td><code>fn <a href='#method.abs' class='fnname'>abs</a>(self) -&gt; <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.f64.html">f64</a></code></span></td><td><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/num_traits/macros.rs.html#9-11' title='goto source code'>[src]</a></td></tr></tbody></table></span></h4><h4 id='method.signum-1' class="method"><span id='signum.v-2' class='invisible'><table class='table-display'><tbody><tr><td><code>fn <a href='#method.signum' class='fnname'>signum</a>(self) -&gt; <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.f64.html">f64</a></code></span></td><td><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/num_traits/macros.rs.html#9-11' title='goto source code'>[src]</a></td></tr></tbody></table></span></h4><h4 id='method.is_sign_positive-1' class="method"><span id='is_sign_positive.v-2' class='invisible'><table class='table-display'><tbody><tr><td><code>fn <a href='#method.is_sign_positive' class='fnname'>is_sign_positive</a>(self) -&gt; <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.bool.html">bool</a></code></span></td><td><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/num_traits/macros.rs.html#9-11' title='goto source code'>[src]</a></td></tr></tbody></table></span></h4><h4 id='method.is_sign_negative-1' class="method"><span id='is_sign_negative.v-2' class='invisible'><table class='table-display'><tbody><tr><td><code>fn <a href='#method.is_sign_negative' class='fnname'>is_sign_negative</a>(self) -&gt; <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.bool.html">bool</a></code></span></td><td><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/num_traits/macros.rs.html#9-11' title='goto source code'>[src]</a></td></tr></tbody></table></span></h4><h4 id='method.mul_add-1' class="method"><span id='mul_add.v-2' class='invisible'><table class='table-display'><tbody><tr><td><code>fn <a href='#method.mul_add' class='fnname'>mul_add</a>(self, a: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.f64.html">f64</a>, b: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.f64.html">f64</a>) -&gt; <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.f64.html">f64</a></code></span></td><td><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/num_traits/macros.rs.html#9-11' title='goto source code'>[src]</a></td></tr></tbody></table></span></h4><h4 id='method.recip-1' class="method"><span id='recip.v-2' class='invisible'><table class='table-display'><tbody><tr><td><code>fn <a href='#method.recip' class='fnname'>recip</a>(self) -&gt; <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.f64.html">f64</a></code></span></td><td><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/num_traits/macros.rs.html#9-11' title='goto source code'>[src]</a></td></tr></tbody></table></span></h4><h4 id='method.powi-1' class="method"><span id='powi.v-2' class='invisible'><table class='table-display'><tbody><tr><td><code>fn <a href='#method.powi' class='fnname'>powi</a>(self, n: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.i32.html">i32</a>) -&gt; <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.f64.html">f64</a></code></span></td><td><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/num_traits/macros.rs.html#9-11' title='goto source code'>[src]</a></td></tr></tbody></table></span></h4><h4 id='method.powf-1' class="method"><span id='powf.v-2' class='invisible'><table class='table-display'><tbody><tr><td><code>fn <a href='#method.powf' class='fnname'>powf</a>(self, n: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.f64.html">f64</a>) -&gt; <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.f64.html">f64</a></code></span></td><td><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/num_traits/macros.rs.html#9-11' title='goto source code'>[src]</a></td></tr></tbody></table></span></h4><h4 id='method.sqrt-1' class="method"><span id='sqrt.v-2' class='invisible'><table class='table-display'><tbody><tr><td><code>fn <a href='#method.sqrt' class='fnname'>sqrt</a>(self) -&gt; <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.f64.html">f64</a></code></span></td><td><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/num_traits/macros.rs.html#9-11' title='goto source code'>[src]</a></td></tr></tbody></table></span></h4><h4 id='method.exp-1' class="method"><span id='exp.v-2' class='invisible'><table class='table-display'><tbody><tr><td><code>fn <a href='#method.exp' class='fnname'>exp</a>(self) -&gt; <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.f64.html">f64</a></code></span></td><td><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/num_traits/macros.rs.html#9-11' title='goto source code'>[src]</a></td></tr></tbody></table></span></h4><h4 id='method.exp2-1' class="method"><span id='exp2.v-2' class='invisible'><table class='table-display'><tbody><tr><td><code>fn <a href='#method.exp2' class='fnname'>exp2</a>(self) -&gt; <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.f64.html">f64</a></code></span></td><td><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/num_traits/macros.rs.html#9-11' title='goto source code'>[src]</a></td></tr></tbody></table></span></h4><h4 id='method.ln-1' class="method"><span id='ln.v-2' class='invisible'><table class='table-display'><tbody><tr><td><code>fn <a href='#method.ln' class='fnname'>ln</a>(self) -&gt; <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.f64.html">f64</a></code></span></td><td><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/num_traits/macros.rs.html#9-11' title='goto source code'>[src]</a></td></tr></tbody></table></span></h4><h4 id='method.log-1' class="method"><span id='log.v-2' class='invisible'><table class='table-display'><tbody><tr><td><code>fn <a href='#method.log' class='fnname'>log</a>(self, base: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.f64.html">f64</a>) -&gt; <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.f64.html">f64</a></code></span></td><td><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/num_traits/macros.rs.html#9-11' title='goto source code'>[src]</a></td></tr></tbody></table></span></h4><h4 id='method.log2-1' class="method"><span id='log2.v-2' class='invisible'><table class='table-display'><tbody><tr><td><code>fn <a href='#method.log2' class='fnname'>log2</a>(self) -&gt; <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.f64.html">f64</a></code></span></td><td><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/num_traits/macros.rs.html#9-11' title='goto source code'>[src]</a></td></tr></tbody></table></span></h4><h4 id='method.log10-1' class="method"><span id='log10.v-2' class='invisible'><table class='table-display'><tbody><tr><td><code>fn <a href='#method.log10' class='fnname'>log10</a>(self) -&gt; <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.f64.html">f64</a></code></span></td><td><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/num_traits/macros.rs.html#9-11' title='goto source code'>[src]</a></td></tr></tbody></table></span></h4><h4 id='method.to_degrees-2' class="method"><span id='to_degrees.v-2' class='invisible'><table class='table-display'><tbody><tr><td><code>fn <a href='#method.to_degrees' class='fnname'>to_degrees</a>(self) -&gt; <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.f64.html">f64</a></code></span></td><td><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/num_traits/macros.rs.html#9-11' title='goto source code'>[src]</a></td></tr></tbody></table></span></h4><h4 id='method.to_radians-2' class="method"><span id='to_radians.v-2' class='invisible'><table class='table-display'><tbody><tr><td><code>fn <a href='#method.to_radians' class='fnname'>to_radians</a>(self) -&gt; <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.f64.html">f64</a></code></span></td><td><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/num_traits/macros.rs.html#9-11' title='goto source code'>[src]</a></td></tr></tbody></table></span></h4><h4 id='method.max-1' class="method"><span id='max.v-2' class='invisible'><table class='table-display'><tbody><tr><td><code>fn <a href='#method.max' class='fnname'>max</a>(self, other: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.f64.html">f64</a>) -&gt; <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.f64.html">f64</a></code></span></td><td><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/num_traits/macros.rs.html#9-11' title='goto source code'>[src]</a></td></tr></tbody></table></span></h4><h4 id='method.min-1' class="method"><span id='min.v-2' class='invisible'><table class='table-display'><tbody><tr><td><code>fn <a href='#method.min' class='fnname'>min</a>(self, other: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.f64.html">f64</a>) -&gt; <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.f64.html">f64</a></code></span></td><td><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/num_traits/macros.rs.html#9-11' title='goto source code'>[src]</a></td></tr></tbody></table></span></h4><h4 id='method.cbrt-1' class="method"><span id='cbrt.v-2' class='invisible'><table class='table-display'><tbody><tr><td><code>fn <a href='#method.cbrt' class='fnname'>cbrt</a>(self) -&gt; <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.f64.html">f64</a></code></span></td><td><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/num_traits/macros.rs.html#9-11' title='goto source code'>[src]</a></td></tr></tbody></table></span></h4><h4 id='method.hypot-1' class="method"><span id='hypot.v-2' class='invisible'><table class='table-display'><tbody><tr><td><code>fn <a href='#method.hypot' class='fnname'>hypot</a>(self, other: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.f64.html">f64</a>) -&gt; <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.f64.html">f64</a></code></span></td><td><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/num_traits/macros.rs.html#9-11' title='goto source code'>[src]</a></td></tr></tbody></table></span></h4><h4 id='method.sin-1' class="method"><span id='sin.v-2' class='invisible'><table class='table-display'><tbody><tr><td><code>fn <a href='#method.sin' class='fnname'>sin</a>(self) -&gt; <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.f64.html">f64</a></code></span></td><td><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/num_traits/macros.rs.html#9-11' title='goto source code'>[src]</a></td></tr></tbody></table></span></h4><h4 id='method.cos-1' class="method"><span id='cos.v-2' class='invisible'><table class='table-display'><tbody><tr><td><code>fn <a href='#method.cos' class='fnname'>cos</a>(self) -&gt; <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.f64.html">f64</a></code></span></td><td><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/num_traits/macros.rs.html#9-11' title='goto source code'>[src]</a></td></tr></tbody></table></span></h4><h4 id='method.tan-1' class="method"><span id='tan.v-2' class='invisible'><table class='table-display'><tbody><tr><td><code>fn <a href='#method.tan' class='fnname'>tan</a>(self) -&gt; <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.f64.html">f64</a></code></span></td><td><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/num_traits/macros.rs.html#9-11' title='goto source code'>[src]</a></td></tr></tbody></table></span></h4><h4 id='method.asin-1' class="method"><span id='asin.v-2' class='invisible'><table class='table-display'><tbody><tr><td><code>fn <a href='#method.asin' class='fnname'>asin</a>(self) -&gt; <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.f64.html">f64</a></code></span></td><td><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/num_traits/macros.rs.html#9-11' title='goto source code'>[src]</a></td></tr></tbody></table></span></h4><h4 id='method.acos-1' class="method"><span id='acos.v-2' class='invisible'><table class='table-display'><tbody><tr><td><code>fn <a href='#method.acos' class='fnname'>acos</a>(self) -&gt; <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.f64.html">f64</a></code></span></td><td><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/num_traits/macros.rs.html#9-11' title='goto source code'>[src]</a></td></tr></tbody></table></span></h4><h4 id='method.atan-1' class="method"><span id='atan.v-2' class='invisible'><table class='table-display'><tbody><tr><td><code>fn <a href='#method.atan' class='fnname'>atan</a>(self) -&gt; <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.f64.html">f64</a></code></span></td><td><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/num_traits/macros.rs.html#9-11' title='goto source code'>[src]</a></td></tr></tbody></table></span></h4><h4 id='method.atan2-1' class="method"><span id='atan2.v-2' class='invisible'><table class='table-display'><tbody><tr><td><code>fn <a href='#method.atan2' class='fnname'>atan2</a>(self, other: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.f64.html">f64</a>) -&gt; <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.f64.html">f64</a></code></span></td><td><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/num_traits/macros.rs.html#9-11' title='goto source code'>[src]</a></td></tr></tbody></table></span></h4><h4 id='method.sin_cos-1' class="method"><span id='sin_cos.v-2' class='invisible'><table class='table-display'><tbody><tr><td><code>fn <a href='#method.sin_cos' class='fnname'>sin_cos</a>(self) -&gt; <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.tuple.html">(</a><a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.f64.html">f64</a>, <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.f64.html">f64</a><a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.tuple.html">)</a></code></span></td><td><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/num_traits/macros.rs.html#9-11' title='goto source code'>[src]</a></td></tr></tbody></table></span></h4><h4 id='method.exp_m1-1' class="method"><span id='exp_m1.v-2' class='invisible'><table class='table-display'><tbody><tr><td><code>fn <a href='#method.exp_m1' class='fnname'>exp_m1</a>(self) -&gt; <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.f64.html">f64</a></code></span></td><td><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/num_traits/macros.rs.html#9-11' title='goto source code'>[src]</a></td></tr></tbody></table></span></h4><h4 id='method.ln_1p-1' class="method"><span id='ln_1p.v-2' class='invisible'><table class='table-display'><tbody><tr><td><code>fn <a href='#method.ln_1p' class='fnname'>ln_1p</a>(self) -&gt; <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.f64.html">f64</a></code></span></td><td><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/num_traits/macros.rs.html#9-11' title='goto source code'>[src]</a></td></tr></tbody></table></span></h4><h4 id='method.sinh-1' class="method"><span id='sinh.v-2' class='invisible'><table class='table-display'><tbody><tr><td><code>fn <a href='#method.sinh' class='fnname'>sinh</a>(self) -&gt; <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.f64.html">f64</a></code></span></td><td><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/num_traits/macros.rs.html#9-11' title='goto source code'>[src]</a></td></tr></tbody></table></span></h4><h4 id='method.cosh-1' class="method"><span id='cosh.v-2' class='invisible'><table class='table-display'><tbody><tr><td><code>fn <a href='#method.cosh' class='fnname'>cosh</a>(self) -&gt; <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.f64.html">f64</a></code></span></td><td><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/num_traits/macros.rs.html#9-11' title='goto source code'>[src]</a></td></tr></tbody></table></span></h4><h4 id='method.tanh-1' class="method"><span id='tanh.v-2' class='invisible'><table class='table-display'><tbody><tr><td><code>fn <a href='#method.tanh' class='fnname'>tanh</a>(self) -&gt; <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.f64.html">f64</a></code></span></td><td><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/num_traits/macros.rs.html#9-11' title='goto source code'>[src]</a></td></tr></tbody></table></span></h4><h4 id='method.asinh-1' class="method"><span id='asinh.v-2' class='invisible'><table class='table-display'><tbody><tr><td><code>fn <a href='#method.asinh' class='fnname'>asinh</a>(self) -&gt; <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.f64.html">f64</a></code></span></td><td><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/num_traits/macros.rs.html#9-11' title='goto source code'>[src]</a></td></tr></tbody></table></span></h4><h4 id='method.acosh-1' class="method"><span id='acosh.v-2' class='invisible'><table class='table-display'><tbody><tr><td><code>fn <a href='#method.acosh' class='fnname'>acosh</a>(self) -&gt; <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.f64.html">f64</a></code></span></td><td><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/num_traits/macros.rs.html#9-11' title='goto source code'>[src]</a></td></tr></tbody></table></span></h4><h4 id='method.atanh-1' class="method"><span id='atanh.v-2' class='invisible'><table class='table-display'><tbody><tr><td><code>fn <a href='#method.atanh' class='fnname'>atanh</a>(self) -&gt; <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.f64.html">f64</a></code></span></td><td><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/num_traits/macros.rs.html#9-11' title='goto source code'>[src]</a></td></tr></tbody></table></span></h4></div></span>
  589. <h2 id='implementors' class='small-section-header'>
  590. Implementors<a href='#implementors' class='anchor'></a>
  591. </h2>
  592. <ul class='item-list' id='implementors-list'>
  593. </ul><script type="text/javascript">window.inlined_types=new Set([]);</script><script type="text/javascript" async
  594. src="../implementors/num_traits/float/trait.Float.js">
  595. </script></section><section id="search" class="content hidden"></section><section class="footer"></section><aside id="help" class="hidden"><div><h1 class="hidden">Help</h1><div class="shortcuts"><h2>Keyboard Shortcuts</h2><dl><dt><kbd>?</kbd></dt><dd>Show this help dialog</dd><dt><kbd>S</kbd></dt><dd>Focus the search field</dd><dt><kbd>↑</kbd></dt><dd>Move up in search results</dd><dt><kbd>↓</kbd></dt><dd>Move down in search results</dd><dt><kbd>↹</kbd></dt><dd>Switch tab</dd><dt><kbd>&#9166;</kbd></dt><dd>Go to active search result</dd><dt><kbd>+</kbd></dt><dd>Expand all sections</dd><dt><kbd>-</kbd></dt><dd>Collapse all sections</dd></dl></div><div class="infos"><h2>Search Tricks</h2><p>Prefix searches with a type followed by a colon (e.g. <code>fn:</code>) to restrict the search to a given type.</p><p>Accepted types are: <code>fn</code>, <code>mod</code>, <code>struct</code>, <code>enum</code>, <code>trait</code>, <code>type</code>, <code>macro</code>, and <code>const</code>.</p><p>Search functions by type signature (e.g. <code>vec -> usize</code> or <code>* -> vec</code>)</p><p>Search multiple things at once by splitting your query with comma (e.g. <code>str,u8</code> or <code>String,struct:Vec,test</code>)</p></div></div></aside><script>window.rootPath = "../";window.currentCrate = "num";</script><script src="../aliases.js"></script><script src="../main.js"></script><script defer src="../search-index.js"></script></body></html>