Wolfram Demonstrations Projecthttp://demonstrations.wolfram.com/An Open Resource of Interactive Mathematica VisualizationsCopyright 2009 Wolfram Demonstrations Project & ContributorsRuler and Compass Construction of a Square with Doubled Areahttp://demonstrations.wolfram.com/RulerAndCompassConstructionOfASquareWithDoubledArea/]]>http://demonstrations.wolfram.com/RulerAndCompassConstructionOfASquareWithDoubledArea/Graphical Solution of a Quadratic Equation Using the Arithmetic and Geometric Meanhttp://demonstrations.wolfram.com/GraphicalSolutionOfAQuadraticEquationUsingTheArithmeticAndGe/]]>http://demonstrations.wolfram.com/GraphicalSolutionOfAQuadraticEquationUsingTheArithmeticAndGe/Graphical Solution of a Quadratic Equation Using a Result from Opticshttp://demonstrations.wolfram.com/GraphicalSolutionOfAQuadraticEquationUsingAResultFromOptics/]]>http://demonstrations.wolfram.com/GraphicalSolutionOfAQuadraticEquationUsingAResultFromOptics/Archimedean Solidshttp://demonstrations.wolfram.com/ArchimedeanSolids/]]>http://demonstrations.wolfram.com/ArchimedeanSolids/Platonic Solidshttp://demonstrations.wolfram.com/PlatonicSolids/]]>http://demonstrations.wolfram.com/PlatonicSolids/Solve the Loculus of Archimedeshttp://demonstrations.wolfram.com/SolveTheLoculusOfArchimedes/]]>http://demonstrations.wolfram.com/SolveTheLoculusOfArchimedes/Doubling a Distance with a Compasshttp://demonstrations.wolfram.com/DoublingADistanceWithACompass/]]>http://demonstrations.wolfram.com/DoublingADistanceWithACompass/Proposition 30, Book XI, Euclid's Elementshttp://demonstrations.wolfram.com/Proposition30BookXIEuclidsElements/]]>http://demonstrations.wolfram.com/Proposition30BookXIEuclidsElements/Proposition 29, Book XI, Euclid's Elementshttp://demonstrations.wolfram.com/Proposition29BookXIEuclidsElements/]]>http://demonstrations.wolfram.com/Proposition29BookXIEuclidsElements/Hirano's Construction of a Regular Pentagonhttp://demonstrations.wolfram.com/HiranosConstructionOfARegularPentagon/]]>http://demonstrations.wolfram.com/HiranosConstructionOfARegularPentagon/Proposition 7, Book XII, Euclid's Elementshttp://demonstrations.wolfram.com/Proposition7BookXIIEuclidsElements/]]>http://demonstrations.wolfram.com/Proposition7BookXIIEuclidsElements/Three Proofs of the Pythagorean Theoremhttp://demonstrations.wolfram.com/ThreeProofsOfThePythagoreanTheorem/]]>http://demonstrations.wolfram.com/ThreeProofsOfThePythagoreanTheorem/The Euclidean Algorithm and Simple Continued Fractionshttp://demonstrations.wolfram.com/TheEuclideanAlgorithmAndSimpleContinuedFractions/]]>http://demonstrations.wolfram.com/TheEuclideanAlgorithmAndSimpleContinuedFractions/Dudeney's Proof of the Pythagorean Theoremhttp://demonstrations.wolfram.com/DudeneysProofOfThePythagoreanTheorem/]]>http://demonstrations.wolfram.com/DudeneysProofOfThePythagoreanTheorem/Equality of a Segment and an Arc in Archimedes's Spiralhttp://demonstrations.wolfram.com/EqualityOfASegmentAndAnArcInArchimedessSpiral/]]>http://demonstrations.wolfram.com/EqualityOfASegmentAndAnArcInArchimedessSpiral/Nicomedes's Mechanism for Constructing a Conchoidhttp://demonstrations.wolfram.com/NicomedessMechanismForConstructingAConchoid/]]>http://demonstrations.wolfram.com/NicomedessMechanismForConstructingAConchoid/Primitive Pythagorean Triples on a Curvilinear Grid Defined by Euclid's Formulahttp://demonstrations.wolfram.com/PrimitivePythagoreanTriplesOnACurvilinearGridDefinedByEuclid/]]>http://demonstrations.wolfram.com/PrimitivePythagoreanTriplesOnACurvilinearGridDefinedByEuclid/Archimedes' Approximation of Pihttp://demonstrations.wolfram.com/ArchimedesApproximationOfPi/]]>http://demonstrations.wolfram.com/ArchimedesApproximationOfPi/Antikythera Mechanismhttp://demonstrations.wolfram.com/AntikytheraMechanism/]]>http://demonstrations.wolfram.com/AntikytheraMechanism/The Eratosthenes Machine for Finding the Cube Root of Twohttp://demonstrations.wolfram.com/TheEratosthenesMachineForFindingTheCubeRootOfTwo/]]>http://demonstrations.wolfram.com/TheEratosthenesMachineForFindingTheCubeRootOfTwo/