一类函数迭代的性质

摘要

采用矩阵法求出分式线性函数f(x)=ax+b/cx+d的n次迭代表达式fn(x),并分别对fn(x)的周期性、单调性、不动点进行讨论.%We find the n th iteration expression fn(x) of fraction linear function f(x) =ax+b/cx+d byrnusing matrix method,and discuss its periodicity,monotonicity,fixed point,respectively.