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- \tikzset{
- point/.style={
- thick,
- draw=gray,
- cross out,
- inner sep=0pt,
- minimum width=4pt,
- minimum height=4pt,
- },
- }
- \begin{tikzpicture}
-
- \draw[->] (-0.5,0) -- (1.5,0) node [below] {$\mathbb{R}$};
- \foreach \x in {0,...,1}
- \draw (\x,0.1) -- (\x,-0.1) node [below] {\x};
- \draw[thick,red] (0.07,0.1) -- (0,0.1) -- (0,-0.1) -- (0.07,-0.1) node [below] {};
- \draw[thick,red] plot [smooth] coordinates{(0.47,0.1) (0.5,0) (0.47,-0.1)};
- \draw[thick,red] (0,0) -- (0.5,0);
- \draw[dotted,red] (0,-0.03) -- (0.5,-0.03);
- \begin{scope}[shift={(4,0)}]
- \draw[thick] (0cm,0cm) circle(1cm);
- \draw[thick, red] ([shift={(180:1cm)}]-0.0,0) arc (180:0:1cm);
- \draw[red, dotted] ([shift={(180:0.97cm)}]-0.0,0) arc (180:0:0.97cm);
- \draw (0:1cm) node[point, label=right:{$0$}] {};
- \end{scope}
- \coordinate (circleUp) at (2.6, 0.1);
- \coordinate (circleDown) at (2.6,-0.1);
- \coordinate (numberlineUp) at (1.7, 0.1);
- \coordinate (numberlineDown) at (1.7,-0.1);
- \path[->] (numberlineUp) edge [bend left] node[label=$f$] {} (circleUp);
- \path[<-] (numberlineDown) edge [bend right] node[label=below:$g$] {} (circleDown);
- \end{tikzpicture}
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