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Integrate in time domain

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Sreet Swastik
Sreet Swastik 2013-3-28
I have a function named Kp*e... How do I integrate it in MATLAB say from 0 to 5?

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Mahdi
Mahdi 2013-3-28
You can use the int(expr,var,a,b) function.
So in your case, it would be
syms e Kp
int(Kp.*e, e, 0,5)
The result would be 25.*Kp/2. You can obviously play around with this by setting Kp to a value, and so on...
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Sreet Swastik
Sreet Swastik 2013-3-28
int(Kp*e, e, 0,5)
??? Undefined function or method 'int' for input arguments of type 'double'
This is the error when I do it!
Mahdi
Mahdi 2013-3-28
Did you use the line before it? You need syms e Kp fo this to work. (Sets Kp as a symbol). You can also do this for example:
Kp=4.4 % A number I chose
syms e
int(Kp.*e, e, 0,5)

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