mtb graph.tex (362B)
1 \begin{tikzpicture} 2 \node (e1) {\(e_1\)}; 3 \node[right=of e1] (e2) {\(e_2\)}; 4 \node[left=of e1] (e3) {\(e_3\)}; 5 \draw[arrow] (e1) to node[midway,above] {\(r_3\)} (e3); 6 \draw[arrow] (e1) to[bend left=30] node[midway,above] {\(r_1\)} (e2); 7 \draw[arrow] (e1) to[bend right=30] node[midway,below] {\(r_2\)} (e2); 8 \end{tikzpicture}