The definitions for p - adic variables, p - adic valued functions and the derivatives of real val-ued functions of p- adic variables are given, and the following formulas for Riemann integrals to the corresponding p-adic integrals are generalized: ① formula of finite increment, ② formula of change of variables in integral, ③ formula of chain rule for differetiation.%给出了p-adic变量p-adic值函数及p-adic变量实值函数的导数定义,将黎曼积分中下列公式推广到p-adic积分中去:(1)有限增量公式;(2)积分变量替换公式;(3)微分链导法则.
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