一类递归数列的收敛判别法

Convergence Criteria of One Type of Recursive Series

讨论了已知初项α１．而通项由速归式ａｎ＋１＝ｆ（ａｎ）（ｎ＞１）确定的递归数列，给出了利用导数判定其收效性，并求出其极限的方法．

This paper discussed the recursive series which was determined with a known first term a and a general term Besides, the paper presented a method which was used to decide the convergence and to obtain the limit by means of derivativers.