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18 lines
816 B
TeX
18 lines
816 B
TeX
\begin{tikzpicture}
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\tikzstyle{point}=[circle,thick,draw=black,fill=black,inner sep=0pt,minimum width=4pt,minimum height=4pt]
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\node (a)[point,label={[label distance=0cm]180:$0$}] at (0,0) {};
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\node (b)[point,label={[label distance=0cm]0:$e_2$}] at (2.5,0) {};
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\node (c)[point,label={[label distance=0cm]90:$e_1$}] at (2,1) {};
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\begin{scope}[xshift=5cm]
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\node (d)[point,label={[label distance=0cm]180:$0$}] at (0,0) {};
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\node (e)[point,label={[label distance=0cm]0:$b_1$}] at (4,0) {};
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\node (f)[point,label={[label distance=0cm]90:$b_2$}] at (2,2) {};
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\end{scope}
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\draw (a.center) -- (b.center) -- (c.center) -- cycle;
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\draw (d.center) -- (e.center) -- (f.center) -- cycle;
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\draw[thick,->] (3,0.5) -- node[above] {$\varphi$} (5,0.5);
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\end{tikzpicture}
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