多元函数L'Hospital法则及其应用

The Rule and Application of Multivariate Function L'Hospital

通过多元函数的柯西中值定理,给出了二元函数L'Hospital法则,解决了一些多元函数的不定式极限问题,分析了利用L'Hospital法则解决问题的优点。

Through the Cauchy mean value theorem of multivariate function, the rule of binary function L＇hospital is given, the limit problem of indeterminate function of some multivariate functions is solved, and the advantages of using L＇hospital rule to solve problems are analyzed.