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Root Locus

RT


clear all;
close all;
syms  s;

numg = -1;
deng =  sym2poly(s^2 - 20.601);
G =  tf(numg, deng);

numh = sym2poly(s+4.5388);
denh = sym2poly(s+5.5388);
H = tf(numh, denh);

k = -1;
H = k * H;

figure 
rlocus(G)
Gf =  feedback(G*H,1)
figure 
rlocus(Gf)
grid on
% [k, poles] = rlocfind(Gf)
figure
step(Gf)


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