See also:
The Mathematical Atlas - Polytopes and Polyhedra
math.niu.edu
Collection of discussions regarding volume, vertices, dissection, g-holed tori, and other subjects.
The Geometry Junkyard
ics.uci.edu
Comprehensive list of links to sites on geometric properties of the shapes.
The Charged Particles Model
presh.com
Polytopes and optimal packing of p points in n dimensional spheres. Includes a java applet based on a model which allows for generation of multidimensional regular and semi-regular polytopes.
Pick's Theorem
cut-the-knot.org
Describes a theorem for finding an area of simple lattice polygons. Includes proof and Java applet simulation.
Numericana - Polyhedra & Polytopes
home.att.net
Enumeration, cartesian coordinates of vertices, naming, and counting the shapes.
Guy's Polyhedra Pages
queenhill.demon.co.uk
Vertex figures, filling, faceting diagrams, stellation, defining polytopes through generators, trimethoric and trisynaptic polyhedra, space-filling polyhedra, lost stellations of the icosahedron, and links.
Regular Polytopes
math.rutgers.edu
Derivation of volume equations for regular polygons, polyhedra, and polytopes, with images.
