卡塔兰立体 Catalan solid
（重定向自Catalan solids）
卡塔兰立体是半正多面体的对偶多面体，都是凸多面体。1865年比利时数学家欧仁·查理·卡塔兰最先描述它们。
卡塔兰立体面可递而点不可递，而其对偶多面体半正多面体点可递而面不可递。只有两个边可递的卡塔兰立体：菱形十二面体和菱形三十面体。
所有多面体中只有有13种是卡塔兰立体，其对偶多面体均为阿基米德立体（半正多面体）。
Catalan solids
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Catalan solid 卡塔兰立体
（重定向自Catalan solids）
In mathematics, a Catalan solid, or Archimedean dual, is a dual polyhedron to an Archimedean solid. The Catalan solids are named for the Belgian mathematician, Eugène Catalan, who first described them in 1865.
The Catalan solids are all convex. They are face-transitive but not vertex-transitive. This is because the dual Archimedean solids are vertex-transitive and not face-transitive. Note that unlike Platonic solids and Archimedean solids, the faces of Catalan solids are not regular polygons. However, the vertex figures of Catalan solids are regular, and they have constant dihedral angles. Being face-transitive, Catalan solids are isohedra.
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