solving integral in matlab

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David Cuberes
David Cuberes am 3 Jun. 2020
Kommentiert: Stephan am 3 Jun. 2020
Hi, I want to find the solution to this integral as a function of x: integral(between 0 and x) of (x-z)dz. The answer should be x^2/2. Thanks!
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John D'Errico
John D'Errico am 3 Jun. 2020
And what, since this is surely homework, have you tried? Have you tried using int? Read the help and the examples for int. I just did it, and indeed, the answer seems to be x^2/2. So why not make an effort?
David Cuberes
David Cuberes am 3 Jun. 2020
John, it is research, not homework. Thanks for asking! This is what I have tried:
fun=@(x-z)dz;
q=integral(fun,0,x)

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Stephan
Stephan am 3 Jun. 2020
What you are looking for is an analytical solution. The integral function does solve numeric. To solve symbolic use int as John already pointed out. Im sure if you read the informations given in the link you will get it very fast.
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David Cuberes
David Cuberes am 3 Jun. 2020
I gave your comment a thumbs up. Thanks. I am new in this matlab world and in this forum.
Stephan
Stephan am 3 Jun. 2020
Feel free to ask the community and be welcome here!

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