四类递推数列通项公式的推导及应用

The Derivation and Application of Four Types of Common Term Formula of Recurrence Sequence

介绍四类递推数列 (一阶线性、二阶线性、一阶分式、二元一阶线性 )

This article introduces some common solving methods of common term formula of recurrence sequence (first linear,second linear,first fraction linear and two unknow linear).