摘要
给出了关于离散定常线性系统的稳定性的一个定理的简化证明。根据这个定理可以通过矩阵的迹判断离散的定常线性系统的稳定性。
A primary proof about a theorem on stability of discrete time-invariable systems is presented. Based on this theorem,the stability of discrete time-invariable systems can be Judge by traces.
