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翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク E7 honeycomb ： ウィキペディア英語版 3 31 honeycomb |- |bgcolor=#e7dcc3|6-face types||221 |- |bgcolor=#e7dcc3|5-face types||211 |- |bgcolor=#e7dcc3|4-face type|| |- |bgcolor=#e7dcc3|Cell type|| |- |bgcolor=#e7dcc3|Face type|| |- |bgcolor=#e7dcc3|Face figure||031 25px |- |bgcolor=#e7dcc3|Edge figure||131 25px |- |bgcolor=#e7dcc3|Vertex figure||231 25px |- |bgcolor=#e7dcc3|Coxeter group||$$ In 7-dimensional geometry, the 331 honeycomb is a uniform honeycomb, also given by Schläfli symbol and is composed of 321 and 7-simplex facets, with 56 and 576 of them respectively around each vertex. ==Construction== It is created by a Wythoff construction upon a set of 8 hyperplane mirrors in 7-dimensional space. The facet information can be extracted from its Coxeter-Dynkin diagram. : Removing the node on the short branch leaves the 6-simplex facet: : Removing the node on the end of the 3-length branch leaves the 321 facet: : The vertex figure is determined by removing the ringed node and ringing the neighboring node. This makes 231 polytope. : The edge figure is determined by removing the ringed node and ringing the neighboring node. This makes 6-demicube (131). : The face figure is determined by removing the ringed node and ringing the neighboring node. This makes rectified 5-simplex (031). : The cell figure is determined by removing the ringed node of the face figure and ringing the neighboring nodes. This makes tetrahedral prism {}×{3,3}. : 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「3 31 honeycomb」の詳細全文を読む スポンサード リンク 翻訳と辞書 : 翻訳のためのインターネットリソース Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.