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四维空间中有多少半正多胞体?

Floor 1 魔法绿骑士 5/12/11 14:02
rt
Floor 2 yaoliding 5/12/11 22:58

http://en.wikipedia.org/wiki/Uniform_polychoron

分几类

正多胞体(有限)

正多胞体派生出来的半正多胞体(有限)

一格特殊的,无法归类的四维反棱柱(一个)

正多面体及阿基米德多面体棱柱(有限)

二重柱Duoprism(无限)

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