nyquist_l.m

自己编写的伯德图、尼奎斯特图、根轨迹图的Matlab绘图程序

%nyquist
%computes and plots the nyquist figure of the single-input, single-output LTI model SYS.
%
p=input('The character of the nominator (poly="1;"non="0")=');
if p==1
num=input('Type in the zeros=');
ng=poly(num);
else
ng=1;  
end
den=input('Type in the poles=');
dg=poly(den);
nyquist(ng,dg);