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不是啊,我是把一条边,作为种子,每次乘以旋转向量没有误差积累的

Posted by uni at 2005-07-21 00:12:51 on Problem 2504
In Reply To:误差累积起来就不行了，再说atan2有机器指令支持的(fpatan)，精度不会低 Posted by:frkstyc at 2005-07-21 00:11:21

Followed by:

你乘一下加一下的，误差就着累积起来了，以前写FFT的时候我就栽过了 (0) frkstyc 2005-07-21 00:15:27
- 没有加,每次都是计算种子(ROTATION I/N*PI); (0) uni 2005-07-21 00:35:10
  - 那就没办法了…… (0) frkstyc 2005-07-21 00:36:26
    - 恩..还是DAOFENG 那句话,就差那么0.001 (0) uni 2005-07-21 00:38:41

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