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@@ -0,0 +1,39 @@
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+\documentclass{article}
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+\usepackage[pdftex,active,tightpage]{preview}
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+\setlength\PreviewBorder{2mm}
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+
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+\usepackage{amsmath}
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+\usepackage{tikz}
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+\usetikzlibrary{shapes, calc, shapes, arrows}
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+
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+\tikzstyle{input}=[draw,fill=red!50,circle,minimum size=20pt,inner sep=0pt]
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+\tikzstyle{hidden}=[draw,fill=green!50,circle,minimum size=20pt,inner sep=0pt]
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+\tikzstyle{output}=[draw,fill=blue!50,circle,minimum size=20pt,inner sep=0pt]
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+\tikzstyle{bias}=[draw,dashed,fill=gray!50,circle,minimum size=20pt,inner sep=0pt]
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+
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+\tikzstyle{stateTransition}=[->, thick]
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+\DeclareMathOperator{\xor}{XOR}
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+\begin{document}
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+\begin{preview}
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+\begin{tikzpicture}[scale=2]
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+ \node (x)[input] at (0,1) {$x$};
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+ \node (y)[input] at (0,0) {$y$};
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+ \node (h1)[hidden] at (1, 1.5) {$1$};
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+ \node (h2)[hidden] at (1, 0.5) {$2$};
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+ \node (h3)[hidden] at (1,-0.5) {$1$};
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+ \node (o1)[output] at (2,0.5) {};
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+
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+ \draw[stateTransition] (x) -- (h1) node [midway,above=-0.06cm] {$1$};
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+ \draw[stateTransition] (x) -- (h2) node [midway,above=-0.06cm] {$1$};
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+ \draw[stateTransition] (y) -- (h2) node [midway,above=-0.06cm] {$1$};
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+ \draw[stateTransition] (y) -- (h3) node [midway,above=-0.06cm] {$1$};
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+
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+ \draw[stateTransition] (h1) -- (o1) node [midway,above=-0.06cm] {$1$};
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+ \draw[stateTransition] (h2) -- (o1) node [midway,above=-0.1cm] {$-2$};
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+ \draw[stateTransition] (h3) -- (o1) node [midway,above=-0.06cm] {$1$};
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+
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+ \draw[stateTransition] (o1) -- (3.5,0.5) node [midway,above=-0.1cm] {$\xor(x, y)$};
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+
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+\end{tikzpicture}
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+\end{preview}
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+\end{document}
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