出典:Wiktionary
出典:『Wiktionary』 (2024/11/08 14:59 UTC 版)
demihypercube (plural demihypercubes)
出典:Wikipedia
出典:『Wikipedia』 (2011/01/20 02:35 UTC 版)
In geometry, demihypercubes (also called n-demicubes, n-hemicubes, and half measure polytopes) are a class of n-polytopes constructed from alternation of an n-hypercube, labeled as hγn for being half of the hypercube family, γn. Half of the vertices are deleted and new facets are formed. The 2n facets become 2n (n-1)-demicubes and 2n (n-1)-simplex facets are formed in place of the deleted vertices.