判别多元函数极值的一种新方法

A NEW METHOD FOR DISCRIMINATING THE EXTREME VALUES OF FUNCTION OF SEVERAL VARIABLES

本文针对文[Ⅰ]给出对多元函数极值的一阶导数检验法,提出了补充定理,并将两者结合称之为判别多元函数极值的新方法。通过实例说明这种方法在运用时是有效而简便的。

The artelc [1] has given a first derivative test for function of several variables, but this paper proposes a supplemetary theorem, which, based on these two ways mentioned above, is called a new method for discriminating the extreme values of function of several varibles Examples show that this new method in applying is both effective and convenicut.