怎么样才有sharp corner???做math lab时有个问题是问什么时候一个curve有sharp coner,不懂是什么情况下才有呀？？？而且还有什么特殊的情况呀？？？ 谢了！！！[Ifaint (3-2 16:29, Long long ago)] [ 传统版 | sForum ][登录后回复]1楼

suggestion:For a curve to have a sharp corner at certain point x=t,

two conditions must be satisfied:

1. The curve is continuous at x=t;

2. f'(x-) is different from f'(x+).



Any correction is welcome. :)[魅力十足 (3-2 20:45, Long long ago)] [ 传统版 | sForum ][登录后回复]2楼

(引用 魅力十足:suggestion:For a curve to have a sharp corner at certain point x=t, two conditions must be satisfied: 1. The curve is conti...)Thank you very much!!![Ifaint (3-3 12:46, Long long ago)] [ 传统版 | sForum ][登录后回复]3楼