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Re:这个表达式是怎样得到的?

Posted by chqch172443 at 2008-07-19 15:09:15 on Problem 1254
In Reply To:这个表达式是怎样得到的? Posted by:pp2788034 at 2006-04-22 21:49:21

> y:=(cos(t2)*(sin(t1)*y1-cos(t1)*x1)-cos(t1)*(sin(t2)*y2-cos(t2)*x2))/(sin(t1-t2));
同问，看来我不只物理不好，数学也超烂，感觉就是初中数学题啊

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