\newpage\section{Foster}\label{foster} %<––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––> %<–––––––––––––––––––– Foster –––––––––––––––––––––––––––––––> %<––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––> \begin{NewMacroBox}{grFoster}{\oarg{options}} \medskip From MathWord : \url{http://mathworld.wolfram.com/FosterGraph.html} \emph{The Foster graph is a graph on 90 vertices and 135 arcs. It has a unique order-15 LCF notations.} \href{http://mathworld.wolfram.com/topics/GraphTheory.html}% {\textcolor{blue}{MathWorld}} by \href{http://en.wikipedia.org/wiki/Eric_W._Weisstein}% {\textcolor{blue}{E.Weisstein}} \end{NewMacroBox} \subsection{\tkzname{Foster graph}} The macros is based on \begin{tkzexample}[code only] \grLCF[Math,RA=7]{17, -9, 37, -37, 9, -17}{15}\end{tkzexample} \vspace*{1cm} \begin{center} \begin{tkzexample}[vbox] \begin{tikzpicture}[scale=.6] \renewcommand*{\VertexInnerSep}{2pt} \renewcommand*{\EdgeLineWidth}{0.5pt} \GraphInit[vstyle=Art] \tikzset{VertexStyle/.append style={minimum size=2pt}} \SetGraphColor{red}{blue} \grLCF[Math,RA=6]{17, -9, 37, -37, 9, -17}{15} \end{tikzpicture} \end{tkzexample} \end{center} \endinput