1)   3D Graph 2.12
Application for displaying 2D and 3D graphs for web presentation and for functions of 3 dimentions
3D, graph, functions, 3-space, 3-dimensional, graphing, 3-d, hyperbolic, paraboloid, elliptical,

 2)   Cosmic Heart 1.0
This application demonstrates the curious relationships wherein a tetrahedron can be inscribed in a cube in two different ways and a cube can be inscribed in a dodecahedron in 5 different ways.
math, mathematics, polygon, polyhedra, tetrahedron, cube, dodecahedron, phi, inscribe, circumscribe,