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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 Dürer graph ： ウィキペディア英語版 Dürer graph In the mathematical field of graph theory, the Dürer graph is an undirected graph with 12 vertices and 18 edges. It is named after Albrecht Dürer, whose 1514 engraving ''Melencolia I'' includes a depiction of Dürer's solid, a convex polyhedron having the Dürer graph as its skeleton. Dürer's solid is one of only four well-covered simple convex polyhedra. ==Dürer's solid== (詳細はcube with two opposite vertices truncated, although Dürer's depiction of it is not in this form but rather as a truncated rhombohedron or triangular truncated trapezohedron. The exact geometry of the solid depicted by Dürer is a subject of some academic debate, with different hypothetical values for its acute angles ranging from 72° to 82°.〔.〕 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「Dürer graph」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.