This paper, proves that there is at least one interior point satisfying the mean-value theorems, and points out an erroneous proof.
本文以多种方法证明了至少有一个内点满足这些中值定理。另外，指出了一种错误的证法。
Basing on a partition of region d, we generalize the differential mean-value theorems for analytic functions and conjugate analytic functions to a high order case.
以分割区域d为基础将解析函数与共轭解析函数的微分中值定理推广到高阶形式。
In this paper, symmetric derivative and symmetric partial derivative are researched and some new differential mean value theorems are defined.
针对对称导数、对称偏导数，给出了一些新形式的微分中值定理。
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