Wolfram Demonstrations Projecthttp://demonstrations.wolfram.com/An Open Resource of Interactive Mathematica VisualizationsCopyright 2009 Wolfram Demonstrations Project & ContributorsBroken Heart Tangram (Variation)http://demonstrations.wolfram.com/BrokenHeartTangramVariation/]]>http://demonstrations.wolfram.com/BrokenHeartTangramVariation/