连续可微分曲线 continuously differentiable curve 连续可微函数 continuously differentiable function 连续可微曲线 continuously differentiable curve ..
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本文完全用初等的方法证明了完全集上连续可微函数都有可微开拓。
By very elementary method, it is proved that every continuous differentiable function defined in a perfect set has differentiable extension.
当收入函数、成本函数为连续可微函数，边际收入等于边际成本，即边际利润等于零时，利润最大；但在离散情况下，上述结论不一定成立，并给出反例。
In this paper I get the profit be maximum, as the revenue function, cost function are continuous differential and the margin revenue equals margin cost, that marginal profit equals zero.
对此，阐明了一些有效的建议，并给出了无处可微连续函数的图示结果。
Some Suggestions for executing this method are presented, graphical results of nowhere differentiable continuous function are shown.
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