\newpage\section{Bull} %<–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––> % Bull %<–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––> The bull graph, 5 vertices, 5 edges, resembles to the head of a bull if drawn properly. The bull graph is a simple graph on 5 nodes and 5 edges whose name derives from its resemblance to a schematic illustration of a bull \begin{center} \begin{tkzexample}[vbox] \begin{tikzpicture}[node distance=4cm] \GraphInit[vstyle=Shade] \Vertex{a0} \NOEA(a0){a2} \NOEA(a2){a4} \NOWE(a0){a1} \NOWE(a1){a3} \Edges(a0,a1,a3) \Edges(a0,a2,a4) \Edge(a1)(a2) \end{tikzpicture} \end{tkzexample} \end{center} \endinput