2005/01/20 | 椅[Chair]
类别(∑〖数学〗) | 评论(0) | 阅读(11) | 发表于 12:26

A surface with tetrahedral symmetry which, according to Nordstrand, looks like an inflatable chair from the 1970s. It is given by the implicit equation

The surface illustrated above has k = 5, , and
0

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