bode : plot magnitude and phase of the
frequency response of a linear system.
gainplot : same as bode but plots only the
magnitude of the frequency response.
nyquist : plot of imaginary part versus real
part of the frequency response of a linear system.
m_circle : M-circle plot used with nyquist plot.
chart : plot the Nichols'chart
black : plot the Black's diagram (Nichols'chart)
for a linear system.
evans : plot the Evans root locus for a
linear system.
plzr : pole-zero plot of the linear system
s=poly(0,'s');
h=syslin('c',(s^2+2*0.9*10*s+100)/(s^2+2*0.3*10.1*s+102.01));
h1=h*syslin('c',(s^2+2*0.1*15.1*s+228.01)/(s^2+2*0.9*15*s+225));
//bode
xsetech([0.,0.,0.5,0.5],[-1,1,-1,1]);
gainplot([h1;h],0.01,100);
//nyquist
xsetech([0.5,0.,0.5,0.5],[-1,1,-1,1]);
nyquist([h1;h])
//chart and black
xsetech([0.,0.5,0.5,0.5],[-1,1,-1,1]);
black([h1;h],0.01,100,['h1';'h'])
chart([-8 -6 -4],[80 120],list(1,0));
//evans
xsetech([0.5,0.5,0.5,0.5],[-1,1,-1,1]);
H=syslin('c',352*poly(-5,'s')/poly([0,0,2000,200,25,1],'s','c'));
evans(H,100)
Figdirfigures/
