Wolfram Demonstrations Projecthttp://demonstrations.wolfram.com/An Open Resource of Interactive Mathematica VisualizationsCopyright 2009 Wolfram Demonstrations Project & ContributorsMotion of an n-Point Dynamical Systemhttp://demonstrations.wolfram.com/MotionOfAnNPointDynamicalSystem/]]>http://demonstrations.wolfram.com/MotionOfAnNPointDynamicalSystem/Kaleidoscopic Polygonshttp://demonstrations.wolfram.com/KaleidoscopicPolygons/]]>http://demonstrations.wolfram.com/KaleidoscopicPolygons/