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Re:这道题的体积公式是不是 1/3*弓形面积*H?In Reply To:这道题的体积公式是不是 1/3*弓形面积*H? Posted by:tasty at 2013-01-05 23:58:56 > 如果这样的话 一堆积分公式统统没用了。 > RT 居然AC了，感觉我推的体积公式有问题，当d取一个很接近D的值的时候，我推的公式会出现负数，不过这个负数很接近0，难道是acos(),log(),sqrt()的精度误差问题？ Followed by: Post your reply here: |
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