G0=tf(100,1 5 25);p=0.8 0.9 1.0 1.1 1.2;hold onfor i=1:length(p);G=feedback(p(i)*G0,1);step(G);endgtext(Kp=0.8);gtext(Kp=0.9);gtext(Kp=1.0);gtext(Kp=1.1);gtext(Kp=1.2);grid%K1.13.9711(PIDKp12.5,0.01Ts=0.568Ti=0.1704,Td=0.0568.G0=tf(100,1 5 25);Kp=1.38;Ti=0.1704;Td=0.0568;%PIDGc=tf(Kp*Ti*Td,Ti,1/Ti,1,0);G=feedback(Gc*G0,1);step(G);grid0 0.2 0.4 0.6 0.8 1 1.2 1.4 1.6 1.8 200.20.40.60.811.21.4Step ResponseTime (sec)Amplitude