用变量代换法求函数极值与最值的几个结论  

A Few Results of Solving Extreme Value and Maximum of a Function Application of Variable-Substitution Method

作　　者：张广计[1] 

机构地区：[1]西北政法学院经贸系,西安710063

出　　处：《大学数学》2006年第5期99-101,共3页College Mathematics

摘　　要：变量代换法是求函数极值与最值的方法之一[1],它可使问题简化[2],但也容易导致错误,本文对此进行了探讨,并给出了几个结论.Substitution of variable is a method of solving extreme value and maximum of a function, which can simplify the problem, but is subject to making mistakes, about this discussion is made and a few results are given in the paper.

关 键 词：变量代换 极值 最值 同胚映射 

分 类 号：O172[理学—数学]