Help Making a Piecewise Function Periodic
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Connor Buternowsky
el 24 de Sept. de 2022
Comentada: Paul
el 10 de Oct. de 2022
So I am trying to plot a piecewise function where z(t) = {t , 0 <= t < 1
e^(-5(t-1)) , 1 <= t < 2.5
0 , else
When I run it, it just gives the one period even though mod(t,2.5) should be keeping everything OK. How do I fix this? (I want to make it periodic)
(Oh yeah, my interval is -2 <= t <= 12)
t1 = -2 : 0.01 : 12;
syms t z(t); % defining a symbolic variable
z(t) = (piecewise((mod(t,2.5)>=0)&(mod(t,2.5)<1),t, (mod(t,2.5)>=1)&(mod(t,2.5)<2.5), exp(-5.*(t-1)), 0));
z1 = z(t1);
figure
hold on
plot(t1, z1);
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Paul
el 24 de Sept. de 2022
HI Connor,
Something like this?
syms t real
z(t) = piecewise(0 <= t <= 1,t, 1 < t <= 2.5, exp(-5*(t-1)),0);
fplot(z(t),[-2 12])
z1(t) = z(mod(t,2.5));
fplot(z1(t),[-2 12])
tval = -2:.01:12;
plot(tval,z1(tval))
4 comentarios
Anoop Kiran
el 10 de Oct. de 2022
Hi Paul,
I tried your code, unfortunately it doesn't result in the periodic behavior at every 2.5 interval like the second and third plots that you have.
Paul
el 10 de Oct. de 2022
You'll need to show the exact code you ran and the results obtained before going any further.
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