Plotting second order ode response

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Ande Mandoyi
Ande Mandoyi on 10 Oct 2020
Answered: Paul on 10 Oct 2020
I have been trying to plot the curve of 'y', the step response of a differential equation but my code doesn't seem to work, please help.
clear all, close all, clc
y = dsolve('D2y+12*Dy+36*y=36', 'y(0) = 0','Dy(0) = 0')
pretty(y)

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Accepted Answer

Paul
Paul on 10 Oct 2020
f=matlabFunction(y);
t=0:.001:1;
plot(t,f(t)),grid
If you have the Control System Toolbox:
step(tf(36,[1 12 36]))

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