Wolfram Demonstrations Projecthttp://demonstrations.wolfram.com/An Open Resource of Interactive Mathematica VisualizationsCopyright 2009 Wolfram Demonstrations Project & ContributorsFocus and Directrix in a Quadratic Bézier Curvehttp://demonstrations.wolfram.com/FocusAndDirectrixInAQuadraticBezierCurve/]]>http://demonstrations.wolfram.com/FocusAndDirectrixInAQuadraticBezierCurve/Rational Cubic Bézier Curveshttp://demonstrations.wolfram.com/RationalCubicBezierCurves/]]>http://demonstrations.wolfram.com/RationalCubicBezierCurves/Knot Vector Generation for B-Spline Interpolationhttp://demonstrations.wolfram.com/KnotVectorGenerationForBSplineInterpolation/]]>http://demonstrations.wolfram.com/KnotVectorGenerationForBSplineInterpolation/Optimal Parameterization of Rational Quadratic Curveshttp://demonstrations.wolfram.com/OptimalParameterizationOfRationalQuadraticCurves/]]>http://demonstrations.wolfram.com/OptimalParameterizationOfRationalQuadraticCurves/Raising the Degree for Bézier Curveshttp://demonstrations.wolfram.com/RaisingTheDegreeForBezierCurves/]]>http://demonstrations.wolfram.com/RaisingTheDegreeForBezierCurves/Conic Section as Bézier Curvehttp://demonstrations.wolfram.com/ConicSectionAsBezierCurve/]]>http://demonstrations.wolfram.com/ConicSectionAsBezierCurve/