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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 Pentellated 8-simplexes ： ウィキペディア英語版 Pentellated 8-simplexes In eight-dimensional geometry, a pentellated 8-simplex is a convex uniform 8-polytope with 5th order truncations of the regular 8-simplex. There are two unique pentellations of the 8-simplex. Including truncations, canetellations, runcinations, and sterications, there are 32 more pentellations. These polytopes are a part of a family 135 uniform 8-polytopes with A8 symmetry. A8, () has order 9 factorial symmetry, or 362880. The bipentalled form is symmetrically ringed, doubling the symmetry order to 725760, and is represented the double-bracketed group 38. The A8 Coxeter plane projection shows order () symmetry for the pentellated 8-simplex, while the bipentellated 8-simple is doubled to () symmetry. == Pentellated 8-simplex == 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「Pentellated 8-simplexes」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.