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很多时候经过除法或者sqrt()以后，本来结果应该是0.5的都会变成0.49999999……所以碰到0.4后面全是9的，实际上肯定是0.5。

Posted by ImLazy at 2008-10-07 22:36:07 on Problem 3675 and last updated at 2008-10-07 22:36:49
In Reply To:1.004999不是1.00吗？ Posted by:cuiaoxiang at 2008-10-07 17:39:47

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