交错级数收敛性的一个判别法及其应用

One way of the discrimination and the use for convergence of the staggered progression

在判别变号级数收敛性时，往往需要几种判别法同时使用．比较麻烦。本文提出一个较简便的判别法，在解决变号级数收敛性方面比较简单．便于应用。

It's diffcult to discriminate the convergence .of the atternate symnbolic progression. It needs several ways of the discrimination at the same time. This article illustates and discusses one way of the discrimination which is easy to use and solves the problem in the respect of some alterate symbolic progression.