函数极值的求解方法函数极值的求解方法摘要本文首先介绍了一元函数极值的一些相关问题，总结了函数极值的定义，讨论了一元函数的充分条件和必要条件，同时列举不同的求解方法及相关例题：其次总结了多元函数的极值问题，讨论函数定义和求解方法：最后列举了函数极值在经济生活中的应用。关键词：函数极值：极大值：极小值The Solution of The Extremum of The FunctionABSTRACTFirstly,this paper introduces some relevant problems about the extremum of unary function,concludes the definition of the extremum of the function and discusses the sufficient andnecessary conditions of unary function.Meanwhile,this paper illustrates different solvingmethods and related examples.Secondly,the paper concludes the extremum problem ofmultivariate function,the definition of multivariate function and the solution methods.Finally,this paper illustrates the application of the function extremum in economic life.Keywords:Function extremum;Maxima value;Minimum value