ex8_35 - ya = exp(-2*t).*cos(2*t)-.5*exp(-2*t).*sin(2*t) +...

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% Example 8.35 % step response num = [1 2 16]; den = [1 4 8 0]; t = 0:10/300:10; y=step(num,den,t); plot(t,y) xlabel('Time (sec)') ylabel('y(t)') title('Step Response') pause % impulse response y=impulse(num,den,t); plot(t,y) xlabel('Time (sec)') ylabel('y(t)') title('Impulse Response') pause % response to exponential x = exp(-2*t); y=lsim(num,den,x,t);
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Unformatted text preview: ya = exp(-2*t).*cos(2*t)-.5*exp(-2*t).*sin(2*t) + 1 - 2*exp(-2*t); plot(t,y,t,ya,'--') % ya is actual response from example 7.30 xlabel('Time (sec)') ylabel('y(t)') title('Response to exp(-t)') text(2,.6,'----- Result computed from lsim') text(2,.5,'- - - Analytical result from Ex. 8.30')...
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