变形法求极限的变化技巧

A Study of the Various Techniques of Transfiguration to Extract Limit

极限是高等数学基本概念与核心内容之一 ,变形作为求极限的一种常用方法 ,变化很多。本文力图对其中的变化技巧作出归纳 ,提出了五种方法 ,以便形成一种常规思路。

Limit is the basic conception and core content of advanced mathematics. As a common used method to extract limit, transfiguration has various forms. Based on the summarizing of the techniques to set up a common consideration, this article proposes five forms of applying transfiguration.