Wolfram Demonstrations Projecthttp://demonstrations.wolfram.com/An Open Resource of Interactive Mathematica VisualizationsCopyright 2009 Wolfram Demonstrations Project & ContributorsLie Subgroups of the 2D Torus Grouphttp://demonstrations.wolfram.com/LieSubgroupsOfThe2DTorusGroup/]]>http://demonstrations.wolfram.com/LieSubgroupsOfThe2DTorusGroup/Generalized Waterman Polyhedrahttp://demonstrations.wolfram.com/GeneralizedWatermanPolyhedra/]]>http://demonstrations.wolfram.com/GeneralizedWatermanPolyhedra/Astroid-Shaped Tent Made of Rectangleshttp://demonstrations.wolfram.com/AstroidShapedTentMadeOfRectangles/]]>http://demonstrations.wolfram.com/AstroidShapedTentMadeOfRectangles/Six-Astroid Designshttp://demonstrations.wolfram.com/SixAstroidDesigns/]]>http://demonstrations.wolfram.com/SixAstroidDesigns/Helical Bevel Gearhttp://demonstrations.wolfram.com/HelicalBevelGear/]]>http://demonstrations.wolfram.com/HelicalBevelGear/Tilted Helicoidhttp://demonstrations.wolfram.com/TiltedHelicoid/]]>http://demonstrations.wolfram.com/TiltedHelicoid/Intersection of Three Polygonal Cylindrical Surfaceshttp://demonstrations.wolfram.com/IntersectionOfThreePolygonalCylindricalSurfaces/]]>http://demonstrations.wolfram.com/IntersectionOfThreePolygonalCylindricalSurfaces/Twisted Surfaces of Revolutionhttp://demonstrations.wolfram.com/TwistedSurfacesOfRevolution/]]>http://demonstrations.wolfram.com/TwistedSurfacesOfRevolution/Exploring Cylindrical Coordinateshttp://demonstrations.wolfram.com/ExploringCylindricalCoordinates/]]>http://demonstrations.wolfram.com/ExploringCylindricalCoordinates/Spirals and Heliceshttp://demonstrations.wolfram.com/SpiralsAndHelices/]]>http://demonstrations.wolfram.com/SpiralsAndHelices/Theorems of Pappus on Surfaces of Revolutionhttp://demonstrations.wolfram.com/TheoremsOfPappusOnSurfacesOfRevolution/]]>http://demonstrations.wolfram.com/TheoremsOfPappusOnSurfacesOfRevolution/Multivariable Derivative Testhttp://demonstrations.wolfram.com/MultivariableDerivativeTest/]]>http://demonstrations.wolfram.com/MultivariableDerivativeTest/Interpolating the Hilbert Curve with a B-Spline to Create a Surfacehttp://demonstrations.wolfram.com/InterpolatingTheHilbertCurveWithABSplineToCreateASurface/]]>http://demonstrations.wolfram.com/InterpolatingTheHilbertCurveWithABSplineToCreateASurface/Diamond-Square Algorithm for Creating Landscapeshttp://demonstrations.wolfram.com/DiamondSquareAlgorithmForCreatingLandscapes/]]>http://demonstrations.wolfram.com/DiamondSquareAlgorithmForCreatingLandscapes/Algebraic Family of Trefoil Curveshttp://demonstrations.wolfram.com/AlgebraicFamilyOfTrefoilCurves/]]>http://demonstrations.wolfram.com/AlgebraicFamilyOfTrefoilCurves/Stacking Cylinders to Form a Solid of Revolutionhttp://demonstrations.wolfram.com/StackingCylindersToFormASolidOfRevolution/]]>http://demonstrations.wolfram.com/StackingCylindersToFormASolidOfRevolution/Tubes in a Cylinderhttp://demonstrations.wolfram.com/TubesInACylinder/]]>http://demonstrations.wolfram.com/TubesInACylinder/Torus Made from Coiling Triangleshttp://demonstrations.wolfram.com/TorusMadeFromCoilingTriangles/]]>http://demonstrations.wolfram.com/TorusMadeFromCoilingTriangles/Torus Made from Coiling Quadrilateralshttp://demonstrations.wolfram.com/TorusMadeFromCoilingQuadrilaterals/]]>http://demonstrations.wolfram.com/TorusMadeFromCoilingQuadrilaterals/Twisted Towerhttp://demonstrations.wolfram.com/TwistedTower/]]>http://demonstrations.wolfram.com/TwistedTower/