Asked by J K
on 11 Jul 2019

I have this function:

input = exp(-((W-w_o).^2)/deltaW.^2).*exp(-(Kx.^2+Ky.^2)/(deltaK.^2)).*exp(1i.*sqrt((W/c).^2-(Kx.^2+Ky.^2)).*z(j));

this is then fourier transformed:

fourier = fftn(input)

I need to normalise it. Dividing it by length() is not giving good results. Could someone please help!

Answer by Matt J
on 11 Jul 2019

Edited by Matt J
on 11 Jul 2019

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## 1 Comment

## Rena Berman (view profile)

## Direct link to this comment

https://www.mathworks.com/matlabcentral/answers/471321-how-to-normalise-a-fft-of-a-3-variable-function#comment_747759

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