多元函数条件极值的解法探讨

Multi-function Solution to Explore the Extreme Conditions

通常我们在求函数条件极值问题时,原则上将条件极值问题转化成无条件极值问题来进行求解,本文介绍了利用拉格朗日乘数法和方向导数法来解决条件极值问题,并将这两种方法进行了比较。

Generally,when we resolve the problem of extreme conditions function ,we always transform it into an unconditional extreme problem. This paper introduces the use of lagrange multiplier method and direction derivative method to solve the conditional extreme problem,and makes a comparison between these two methods.