Wolfram Demonstrations Projecthttp://demonstrations.wolfram.com/An Open Resource of Interactive Mathematica VisualizationsCopyright 2009 Wolfram Demonstrations Project & ContributorsCircular Regressionhttp://demonstrations.wolfram.com/CircularRegression/]]>http://demonstrations.wolfram.com/CircularRegression/Intensity Distribution from Two Coherent Sourceshttp://demonstrations.wolfram.com/IntensityDistributionFromTwoCoherentSources/]]>http://demonstrations.wolfram.com/IntensityDistributionFromTwoCoherentSources/Hartl Optical Diskshttp://demonstrations.wolfram.com/HartlOpticalDisks/]]>http://demonstrations.wolfram.com/HartlOpticalDisks/Laws of Reflection and Refraction via Huygens's Principlehttp://demonstrations.wolfram.com/LawsOfReflectionAndRefractionViaHuygenssPrinciple/]]>http://demonstrations.wolfram.com/LawsOfReflectionAndRefractionViaHuygenssPrinciple/