本文在灰函数和灰极限的基础上，给出了灰函数的导数(或灰导数)的定义，并研究了简单灰函数导数。

Based on grey function and grey limit, this paper gives definition to derivate of grey function (or to grey derivate) and studies the derivate of simple grey function.

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本文在泛灰函数的极限概念基础上，进一步讨论了泛灰函数极限的运算及运算性质，为讨论泛灰函数的连续性以及泛灰函数的导数奠定了基础。

Some definitions of four fundamental operations of grey number and grey function are given in this paper, also we have given the whiting method of grey function.

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本文在泛灰函数的极限概念基础上，进一步讨论了泛灰函数极限的运算及运算性质，为讨论泛灰函数的连续性以及泛灰函数的导数奠定了基础。

Some definitions of four fundamental operations of grey number and grey function are given in this paper, also we have given the whiting method of grey function.

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