Wolfram Demonstrations Projecthttp://demonstrations.wolfram.com/An Open Resource of Interactive Mathematica VisualizationsCopyright 2009 Wolfram Demonstrations Project & ContributorsOptimize the Length of the Crease of a Folded Piece of Paperhttp://demonstrations.wolfram.com/OptimizeTheLengthOfTheCreaseOfAFoldedPieceOfPaper/]]>http://demonstrations.wolfram.com/OptimizeTheLengthOfTheCreaseOfAFoldedPieceOfPaper/Paper Foldinghttp://demonstrations.wolfram.com/PaperFolding/]]>http://demonstrations.wolfram.com/PaperFolding/