Find the variation of x(t)
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Abhinav Raghunandan
le 17 Mai 2022
Commenté : Abhinav Raghunandan
le 17 Mai 2022
Given differential equation
x''(t) + 7x'(t) + 5x(t) = 8u(t) where u is the unit step signal.
Initial Conditions: x(0) = 1, x'(0) = 2
Can someone please help me out to plot x(t) using Matlab with the given initial conditions?
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Chunru
le 17 Mai 2022
Modifié(e) : Chunru
le 17 Mai 2022
syms x(t)
Dx = diff(x, t);
eqn = diff(Dx, t) + 7* Dx + 5*x == 8
cond = [x(0)==1, Dx(0)==2];
y = dsolve(eqn, cond)
fplot(y, [0 5])
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Chunru
le 17 Mai 2022
since u(t)=1 for t>0 and the initial condition is at t=0, it take cares of u(t).
[0, 5] indicates the plotting interval for t is from 0 to 5 as shown in the plot.
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