2004/10/14 | 弹头尖端式曲线[Bullet Nose]
类别(∑〖数学〗) | 评论(0) | 阅读(32) | 发表于 12:42

A quartic curve with implicit equation
(1)

or
(2)

and . In parametric form,
(3)

(4)

The curvature is
(5)

0

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