6-demicube — Demihexeract (6 demicube) Petrie polygon projection Type Uniform 6 polytope Family demihypercube Schläfli symbol {3,33,1} h{4,3,3,3,3} s{2,2,2,2,2} … Wikipedia
List of mathematics articles (D) — NOTOC D D distribution D module D D Agostino s K squared test D Alembert Euler condition D Alembert operator D Alembert s formula D Alembert s paradox D Alembert s principle Dagger category Dagger compact category Dagger symmetric monoidal… … Wikipedia
Alternation (geometry) — In geometry, an alternation (also called partial truncation ) is an operation on a polyhedron or tiling that fully truncates alternate vertices. Only even sided polyhedra can be alternated, for example the zonohedra. Every 2n sided face becomes n … Wikipedia
Demihypercube — Not to be confused with Hemicube (geometry). Alternation of the n cube yields one of two n demicubes, as in this 3 dimensional illustration of the two tetrahedra that arise as the 3 demicubes of the 3 cube. In geometry, demihypercubes (also… … Wikipedia
Hexeract — A hexeract is a name for a six dimensional hypercube with 64 vertices, 192 edges, 240 square faces, 160 cubic cells, 60 tesseract 4 faces, and 12 penteract 5 faces.The name hexeract is derived from combining the name tesseract (the 4 cube ) with… … Wikipedia
Hexacross — A hexacross, is a regular 6 polytope with 12 vertices, 60 edges, 160 triangle faces, 240 octahedron cells, 192 5 cell 4 faces , and 64 5 faces .It is a part of an infinite family of polytopes, called cross polytopes or orthoplexes . The dual… … Wikipedia
Hepteract — A hepteract is a seven dimensional hypercube with 128 vertices, 448 edges, 672 square faces, 560 cubic cells, 280 tesseract 4 faces, 84 penteract 5 faces, and 14 hexeract 6 faces.The name hepteract is derived from combining the name tesseract… … Wikipedia
Demihexeractic honeycomb — The demihexeractic honey is a uniform space filling tessellation (or honeycomb) in Euclidean 6 space. It is constructed as an alternation of the regular hexeractic honeycomb.It is composed of two different types of facets. The hexeracts become… … Wikipedia
10-demicube — Demidekeract (10 demicube) Petrie polygon projection Type Uniform 10 polytope Family demihypercube Coxeter symbol 171 Schläfli symbol … Wikipedia
Uniform 1 k2 polytope — In geometry, 1k2 polytope or {31,k,2} is a uniform polytope in n dimensions (n = k+4) constructed from the En Coxeter group. The family was named by Coxeter as 1k2 by its bifurcating Coxeter Dynkin diagram, with a single ring on the end of the 1… … Wikipedia
