Wolfram Demonstrations Projecthttp://demonstrations.wolfram.com/An Open Resource of Interactive Mathematica VisualizationsCopyright 2009 Wolfram Demonstrations Project & ContributorsSpectral Properties of Directed Cayley Graphshttp://demonstrations.wolfram.com/SpectralPropertiesOfDirectedCayleyGraphs/]]>http://demonstrations.wolfram.com/SpectralPropertiesOfDirectedCayleyGraphs/