Problem 46731. Create nXn Fourier matrix

Created by Almog L

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Create the nXn matrix F such that y=F*x is the Fourier transform of x.

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Last Solution submitted on Apr 16, 2023

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Rafael S.T. Vieira on 12 Oct 2020

When using the 2D Fourier Transform, it's good practice to put the point 0,0 at the middle of the grid, and not at the corner (which will create artifacts). Therefore, a better grid than the one shown at the test suite would be meshgrid((1-N)/2:(N-1)/2,(1-N)/2:(N-1)/2) (for an odd N).

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