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How to integrate cosine wave in MATLAB?

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ANANTA BIJOY BHADRA
ANANTA BIJOY BHADRA le 21 Oct 2022
I have a cosine wave of 50Hz and and 1000 Amplitude. It is a AC voltage. I need to integrate it. I know that it would be the sine wave but i don't how to makethat. I have written the cosine wave part which is given below:
clc
clear
f=50;
a=1000;
dt=0:1e-6:40e-3;
V1=a*cos(2*pi*f*dt);
plot(V1)
How can I do the integration after that?

Réponse acceptée

Star Strider
Star Strider le 21 Oct 2022
One way to ingegrate the ‘V1’ vector is to use cumtrapz
f=50;
a=1000;
dt=0:1e-6:40e-3;
V1=a*cos(2*pi*f*dt);
figure
plot(dt,V1)
V1i = cumtrapz(dt,V1);
figure
plot(dt,V1i)
.

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