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可以,不过直接这样算可能会被e精度

Posted by frkstyc at 2005-05-12 17:03:15 on Problem 2208
In Reply To:请问四面体的一个顶点向底面的投影可以在三角形之外么? Posted by:yzg_1984 at 2005-05-12 16:51:08


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