Help with the integral function

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I am trying to use the integral fucntion to solve this problem:

This is my code:

and I keep getting this error:

Error using integral (line 82)

First input argument must be a function

handle.

Any help would be great, Thanks!

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Answer 1

Star Strider 2021-2-18

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It appears that what you want to integrate could be vectors, not functions. If so, use the trapz (or cumtrapz) function to do a trapezoidal integration.

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Hannah Evans 2021-2-18

i got this error when using that:

Error using permute

ORDER contains an invalid permutation index.

Error in trapz (line 40)

y = permute(y,perm);

Error in Lab3 (line 103)

Z104(i) = (1./g)*trapz(del104, p_ref104,

p104);

Star Strider 2021-2-18

You will need to supply more than an image of your code if you want help to solve this.

First, my version of MATLAB will not run images of code, only actual code, and second, I need to know what the data are that you’re working with, such as what ‘Sva104’ and the others are.

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