翻訳と辞書 Words near each other ・ Compound of twelve pentagonal antiprisms with rotational freedom ・ Compound of twelve pentagonal prisms ・ Compound of twelve pentagrammic antiprisms ・ Compound of twelve pentagrammic crossed antiprisms with rotational freedom ・ Compound of twelve pentagrammic prisms ・ Compound of twelve tetrahedra with rotational freedom ・ Compound of twenty octahedra ・ Compound of twenty octahedra with rotational freedom ・ Compound of twenty tetrahemihexahedra ・ Compound of twenty triangular prisms ・ Compound of two great dodecahedra ・ Compound of two great icosahedra ・ Compound of two great inverted snub icosidodecahedra ・ Compound of two great retrosnub icosidodecahedra ・ Compound of two great snub icosidodecahedra ・ Compound of two icosahedra ・ Compound of two inverted snub dodecadodecahedra ・ Compound of two small stellated dodecahedra ・ Compound of two snub cubes ・ Compound of two snub dodecadodecahedra ・ Compound of two snub dodecahedra ・ Compound of two snub icosidodecadodecahedra ・ Compound of two truncated tetrahedra ・ Compound option ・ Compound pier ・ Compound Poisson distribution ・ Compound Poisson process ・ Compound presentation ・ Compound prism ・ Compound probability distribution Dictionary Lists mini英和辞書 mini和英辞書 Webster 1913 Latin-English FOLDOC Wikipedia English ウィキペディア

翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク Compound of two icosahedra ： ウィキペディア英語版 Compound of two icosahedra |- |bgcolor=#e7dcc3|Coxeter diagrams|| |- |bgcolor=#e7dcc3|Polyhedra||2 icosahedra |- |bgcolor=#e7dcc3|Faces||16+24 triangles |- |bgcolor=#e7dcc3|Edges||60 |- |bgcolor=#e7dcc3|Vertices||24 |- |bgcolor=#e7dcc3|Symmetry group||octahedral (''Oh'') |- |bgcolor=#e7dcc3|Subgroup restricting to one constituent||pyritohedral (''Th'') |} This uniform polyhedron compound is a composition of 2 icosahedra. It has octahedral symmetry ''Oh''. As a holosnub, it is represented by Schläfli symbol β and Coxeter diagram . The triangles in this compound decompose into two orbits under action of the symmetry group: 16 of the triangles lie in coplanar pairs in octahedral planes, while the other 24 lie in unique planes. It shares the same vertex arrangement as a nonuniform truncated octahedron, having irregular hexagons alternating with long and short edges. The icosahedron, as a uniform ''snub tetrahedron'', is similar to these snub-pair compounds: compound of two snub cubes and compound of two snub dodecahedra. == Cartesian coordinates == Cartesian coordinates for the vertices of this compound are all the permutations of : (±1, 0, ±τ) where τ = (1+√5)/2 is the golden ratio (sometimes written φ). 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「Compound of two icosahedra」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.