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Compound of five icosahedra : ウィキペディア英語版 | Compound of five icosahedra
This uniform polyhedron compound is a composition of 5 icosahedra. It has icosahedral symmetry ''Ih''. The triangles in this compound decompose into two orbits under action of the symmetry group: 40 of the triangles lie in coplanar pairs in icosahedral planes, while the other 60 lie in unique planes. == Cartesian coordinates == Cartesian coordinates for the vertices of this compound are all the cyclic permutations of : (0, ±2, ±2τ) : (±τ−1, ±1, ±(1+τ2)) : (±τ, ±τ2, ±(2τ−1)) 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 five icosahedra」の詳細全文を読む
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