mirror of
https://github.com/MartinThoma/LaTeX-examples.git
synced 2025-04-18 19:18:21 +02:00
7740f0147f
The commands
find . -type f -name '*.md' -exec sed --in-place 's/[[:space:]]\+$//' {} \+
and
find . -type f -name '*.tex' -exec sed --in-place 's/[[:space:]]\+$//' {} \+
were used to do so.
37 lines
1.3 KiB
TeX
37 lines
1.3 KiB
TeX
\tikzset{
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point/.style={
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thick,
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draw=gray,
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cross out,
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inner sep=0pt,
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minimum width=4pt,
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minimum height=4pt,
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},
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}
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\begin{tikzpicture}
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\draw[->] (-1.5,0) -- (5.5,0) node [below] {$\mathbb{R}$};
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\foreach \x in {-1,...,5}
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\draw (\x,0.1) -- (\x,-0.1) node [below] {\x};
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\foreach \x in {-1,...,4} {
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\draw[red] (\x+0.6,0.01) -- (\x+0.6,-0.14) node [below] {};
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\draw[red] (\x+1.2,0.01) -- (\x+1.2,-0.14) node [below] {};
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\draw[red] (\x+0.6,-0.07) -- (\x+1.2,-0.07) node [below] {};
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}
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\begin{scope}[shift={(0,-2)}]
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\draw[thick] (0cm,0cm) circle(1cm);
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\draw[thick, red] ([shift={(216:1cm)}]-0.0,0) arc (216:-72:1cm);
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\draw (0:1cm) node[point, label=right:{$0$}] {};
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\path node[point, blue, label={[blue,above]{$\overline{a}$}}] (posU) at (-252:1cm) {};
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\path node[label={[red,left]{$U$}}] at (30:1cm) {};
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\end{scope}
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\draw (3.7cm,0cm) node[point, blue, label={[blue,above]{$a$}}] (posA) {};
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\draw (0.7cm,0cm) node[point, blue, label={[blue,above]{$\pi^{-1}(u)$}}] {};
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\draw[dashed, blue, thick] plot [smooth] coordinates{(posU) (0.2,-0.8) (2.5,-1) (posA)};
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\draw[blue, dashed, thick] (3.7cm,0cm) arc (0:180:1.5 and 0.5);
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\end{tikzpicture}
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