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Re:Orz... 不知道无穷级数是什么,压力好大T_T

Posted by Seen at 2011-12-21 17:55:08 on Problem 3028
In Reply To:Orz... 不知道无穷级数是什么,压力好大T_T Posted by:xuhaoran510 at 2011-12-20 21:15:35
无穷级数这唬人的名称我也是听别人这样说的...我觉得实质就是一个等比数列吧,省略下一些项最后就剩下除以(1-p)了。

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