2013-09-11 13:53:02 +02:00
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\documentclass[varwidth=true, border=2pt]{standalone}
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\usepackage{units}
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\usepackage{ifthen}
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\usepackage{tikz}
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2015-10-14 14:25:34 +02:00
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\usetikzlibrary{calc}
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2013-09-11 13:53:02 +02:00
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\begin{document}
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\tikzstyle{vertex}=[draw,black,fill=blue,circle,minimum size=10pt,inner sep=0pt]
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\tikzstyle{edge}=[very thick]
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\begin{tikzpicture}[scale=2.5]
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\node (a)[vertex,fill=gray!10,align=left] at (0,0) {$A~\nicefrac{1}{3}$\\$B~\nicefrac{1}{6}$\\$C~\nicefrac{1}{2}$};
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\node (b)[vertex,fill=gray!10,align=left] at (1,0) {$A~\nicefrac{2}{5}$\\$B~\nicefrac{1}{5}$\\$C~\nicefrac{2}{5}$};
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\path[thick,->] (a) edge node [anchor=center,above,sloped] {$\nicefrac{9}{10}$} (b);
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\path[thick,->] (a) edge[loop above, looseness=5] node [anchor=center,above,sloped] {$\nicefrac{1}{10}$} (a);
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\path[thick,->] (b) edge[loop above, looseness=5] node [anchor=center,above,sloped] {$1$} (b);
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\end{tikzpicture}
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\end{document}
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