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how to plot Integrate of exponent and cosine equation.

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i want to do simulation to plot this equation;
where i want to change the phi with 0, π/4, and π/2.
Next, I want to do,
where i want to see what is the shape of the graph with multiple tau is used.
Can anyone help me some idea how to start? i appreciate it so much!
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Answers (1)

Martin C.
Martin C. on 8 Oct 2019
you can try something like this
syms tau t
f = exp(-t/tau).*cos(t+1)
func = int(f,t,0,1)
x = 0.01:.01:10;
y = subs(func, x)
plot(x,y)

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