gusucode.com > MATLAB与控制系统仿真实践 源代码 > MATLAB与控制系统仿真实践 源代码/第十四章/eg14_7.m
num=10; den=conv([1 5],[1 -1]); G=tf(num,den); nyquist(G) %%%%%%%%%%%%%%%%%%%%%%%%%%%%% num=10; den=conv([1 5],[1 -1]); G=tf(num,den); pzmap(feedback(G,1))