How can I integrate a function?

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Miguel Reina
Miguel Reina on 22 Mar 2017
Edited: Jan on 22 Mar 2017
For example if I have a vector with values that describe the cos(x) function, and as a result of integration i get the values of the sin(x) function. In my case my function is a flow signal (flow_proccessed) and i want to get the volume (vol). how can I do that?

Accepted Answer

Jan
Jan on 22 Mar 2017
Edited: Jan on 22 Mar 2017
See cumtrapz :
x = 0:0.01:4*pi;
y = cos(x);
s = cumtrapz(x, y);
plot(x, y, 'r', x, s, 'b')

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