www.pudn.com > controlsystem.ZIP > EX3025.M

% Example 3.25 
% 
k=50; 
z=[]; 
p=[-1 -5 2]; 
[num,den]=zp2tf(z,p,k); 
figure(1) 
nyquist(num,den) 
title('Nyquist Plot'); 
figure(2) 
[num1,den1]=cloop(num,den); 
impulse(num1,den1) 
title('Impulse Response')