3-path.tex (410B)
1 \begin{tikzpicture} 2 \node (e1) {\(\rndm{e}_1\)}; 3 \node[right=of e1] (e2) {\(\rndm{e}_2\)}; 4 \node[right=of e2] (e3) {\(\rndm{e}_3\)}; 5 \node[right=of e3] (e4) {\(\rndm{e}_4\rlap{,}\)}; 6 \draw[arrow] (e1) to node[midway,above] {\(\rndm{r}_1\)} (e2); 7 \draw[arrow] (e2) to node[midway,above] {\(\rndm{r}_2\)} (e3); 8 \draw[arrow] (e3) to node[midway,above] {\(\rndm{r}_3\)} (e4); 9 \end{tikzpicture}