Izidor Hafner - Wolfram Demonstrations Project

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Izidor Hafner

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Demonstrations 1 - 20 of 663


Orthogonal Projection of a Solid of Constant Width Updated this week	The Ellipse Problem of Steinhaus Updated this week	Vernier Scale with Extra Precision New this month	Calendar on Dodecahedron	Balancing Abstract Chemical Equations with One Kind of Atom

Two Proofs that the Volume of the Regular Octahedron Is Four Times the Volume of the Regular Tetrahedron	Symmetries of a Prism	Proposition 30, Book XI, Euclid's Elements	Proposition 29, Book XI, Euclid's Elements	Inverting the Rhombic Dodecahedron

Volume of the Regular Tetrahedron and Regular Octahedron	Coloring Polyhedra Given by Map Projections	Cubic Symmetry Types	Six-Piece Dissection of a Tetrahedron into Its Mirror Image	Snub Tetrahedron

Volume of a Cylindrical Hoof	Dehn Invariant of Some Disjoint Unions of Polyhedra with Icosahedral Symmetry	Nets for Regular Spherical Models	Coloring Polyhedra with Four Colors	Dehn Invariant of Some Disjoint Unions of Polyhedra with Octahedral Symmetry

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