Detail of message

Online Judge

Problem Set

Authors

Online Contests

User

Web Board
Home Page
F.A.Qs
Statistical Charts

Current Contest
Past Contests
Scheduled Contests
Award Contest

你必须要用一次COS和SIN吧..

Posted by uni at 2005-07-20 22:32:37 on Problem 2504
In Reply To:然后呢?你如何得到每个顶点的位置? Posted by:uni at 2005-07-20 22:31:56

Followed by:

这个误差就很小了嘛，关键就看你怎么算角度了，不要用累加的，每次都2PI乘一下再除 (0) frkstyc 2005-07-20 22:41:33
- 恩,累加得,乘2PI再除得都试了,我写了4个算法呢..就是差0.001,可能是因为我求圆心用了一次COS吧, (0) uni 2005-07-21 00:00:46
  - 关键就是,你的算法必须和它一模一样.这太恶心了 (0) uni 2005-07-21 00:01:20
  - 呵呵，最不该用的地方用了，你就等着被E吧 (0) c0500448264 2005-07-21 00:01:37
    - 恩。.只是一次而已,而且剩下的精度绝对没问题,我就是不能忍了.这TMD也太E了,呼吁以后比赛计算几何全都有SPJ,杜绝0.001现象出现 (0) uni 2005-07-21 00:05:46
      - 正式比赛就不定有了，现在碰钉子当是积攒rp吧 (0) frkstyc 2005-07-21 00:07:18
        恩。.呼吁,从北京做起 (0) uni 2005-07-21 00:08:14

Post your reply here:

Home Page Go Back To top

All Rights Reserved 2003-2013 Ying Fuchen,Xu Pengcheng,Xie Di
Any problem, Please Contact Administrator