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・ 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
・ Compound refractive lens
・ Compound S
・ Compound semiconductor


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Compound of two snub cubes : ウィキペディア英語版
Compound of two snub cubes

This uniform polyhedron compound is a composition of the 2 enantiomers of the snub cube. As a holosnub, it is represented by Schläfli symbol βr and Coxeter diagram .
The vertex arrangement of this compound is shared by a convex nonuniform truncated cuboctahedron, having rectangular faces, alongside irregular hexagons and octagons, each alternating with two edge lengths.
==Cartesian coordinates==
Cartesian coordinates for the vertices are all the permutations of
:(±1, ±ξ, ±1/ξ)
where ξ is the real solution to
:\xi^3+\xi^2+\xi=1, \,
which can be written
:\xi = \frac\left(\sqrt()} - 1\right)
or approximately 0.543689. ξ is the reciprocal of the tribonacci constant.

抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)
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