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Re:请教一下。。。

Posted by ccutss20113795 at 2012-11-22 20:27:54 on Problem 1183
In Reply To:Re:请教一下。。。 Posted by:wyu_feng at 2009-10-02 12:48:24

> 我同问
我认为arctan（1/a）=arctan(1/(a+m))+arctan(1/(a+n));

若m=a则n=a+1/a ,
进而 arctan(1/a)=arctan(1/a)....
所以m最大为a

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