2004/10/26 | 环索线[Crunode]
类别(∑〖数学〗) | 评论(0) | 阅读(33) | 发表于 13:21
A point where a curve intersects itself so that two branches of the curve have distinct tangent lines. The Maclaurin trisectrix, shown above, has a crunode at the origin.
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