递推数列X_(n+1)=A+B/(C+X_n)的极限存在判定定理

Judging Theorem of Limit Existence of Successive DerivationNumberial Line X_(n+1) = A +C/(C+X_n)

本文利用递推数列（A、B、C为实数）的通项公式,给出该数列极限的判定定理。

This paper uses pass ranks formula of successive derivation numberial line X_(n+1) = A+ C/(C+X_n)(A、B、C are real)and gives the therom of limit existence about this numberial ling.