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直接pow(***,1.0/3)

Posted by frkstyc at 2005-06-06 14:14:00 on Problem 2100
In Reply To:二分么..~ Posted by:palmtenor at 2005-06-06 14:13:07

Followed by:

这样...... (0) palmtenor 2005-06-06 14:16:38
拿几何画板画个函数图像试试~ (0) palmtenor 2005-06-06 14:17:03
- ft，用一点数学！1^2+...+n^2=n(n+1)(2n+1)/6=2n(2n+1)(2n+2)/24，直接开立方就可以估算2n了 (0) frkstyc 2005-06-06 14:19:05
  - 有道理....数学啊....我怎么说呢..... (0) palmtenor 2005-06-06 14:22:22

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