Wolfram Demonstrations Projecthttp://demonstrations.wolfram.com/An Open Resource of Interactive Mathematica VisualizationsCopyright 2009 Wolfram Demonstrations Project & ContributorsMatrix Transposehttp://demonstrations.wolfram.com/MatrixTranspose/]]>http://demonstrations.wolfram.com/MatrixTranspose/Operations on Setshttp://demonstrations.wolfram.com/OperationsOnSets/]]>http://demonstrations.wolfram.com/OperationsOnSets/