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T=15/(s^2+4*s+18)
omegaN=sqrt(18)
zeta=4/(2*omegaN)
disp(omegaN,"omegaN = ")
disp(zeta,"zeta = ")
omegaD=omegaN*sqrt(1-zeta^2)
for(n=1:3)
t=n*%pi/omegaD
if(n==2)
T=t
disp(t,"t for 1st undershoot = ")
disp(T,"time period for oscillations = ")
end
end
disp(4/(zeta*omegaN),"Ts = ")
disp(Ts/T,"total number of cycles = ")
disp(1/T," frequency of damped oscillations = ")
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