决定性系统中，这个脚本演示计算的观测系统状态的观测为X0输入和一个输出输入有限时间t1.这个脚本的输入是单位阶跃函数- This scr ipt demonstrates computing the state x0 of an observable system based on observing input and output for a finite time t1.The input is a unit step function for this scr ipt