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！！！
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. :)
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. :)
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