送交者: 008 于 2005-8-14, 10:28:00:

回答: 盒子问题“纯小学解法”质疑 由 飞鱼 于 2005-8-14, 04:00:58:

He was just trying to call 微分的朴素思想 as 纯小学解法. Since we can derive anything from 小学 this method is certainly valid.

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