35 lines
1 KiB
Text
35 lines
1 KiB
Text
\documentclass{standalone}
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\input{common-headers}
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\input{sigles}
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\begin{document}
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\begin{tikzpicture}
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\clip(-2,-2) rectangle (2,2);
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\begin{scope}[shift={(.5,.5)}]
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\draw[densely dotted] (-3,-3) grid (3,3);
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\end{scope}
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\draw[fill] (1,0) circle (1.5pt) node[right]
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{\GBF{e}};
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\draw[fill] (0,1) circle (1.5pt) node[above]
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{\GBF{n}};
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\draw[fill] (1,1) circle (1.5pt) node[above right]
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{\GBF{ne}};
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\draw[fill] (1,-1) circle (1.5pt) node[below right]
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{\GBF{se}};
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\draw[thick,->] (0,0) -- (1,0);
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\draw[thick,->] (0,0) -- (0,1);
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\draw[thick,->] (0,0) -- (1,1);
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\draw[thick,->] (0,0) -- (1,-1);
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\draw[fill] (-1,0) circle (1.5pt) node[left]
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{\GBF{w}};
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\draw[fill] (0,-1) circle (1.5pt) node[below]
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{\GBF{s}};
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\draw[fill] (-1,-1) circle (1.5pt) node[below left]
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{\GBF{sw}};
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\draw[fill] (-1,1) circle (1.5pt) node[above left]
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{\GBF{nw}};
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\draw[dashed,->] (0,0) -- (-1,-0);
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\draw[dashed,->] (0,0) -- (-0,-1);
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\draw[dashed,->] (0,0) -- (-1,-1);
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\draw[dashed,->] (0,0) -- (-1, 1);
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\end{tikzpicture}
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\end{document}
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