Interplay of fft, ifft, fftshift, and ifftshift in MATLAB

Version 1.1.0.0 (3.93 KB) by Shalin Mehta
This file clarifies assumptions about the position of origin in computation of DFT
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Updated 11 May 2011

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This script was used to publish a post by the same title:
http://www.mshalin.com/blog/?p=467, where I tried to clarify the assumptions made in computation of DFT (by FFT algorithm). These assumptions have important consequences. This script takes the example of obtaining real and even Fourier/inverse Fourier transform from a real and even function.

Cite As

Shalin Mehta (2025). Interplay of fft, ifft, fftshift, and ifftshift in MATLAB (https://www.mathworks.com/matlabcentral/fileexchange/26196-interplay-of-fft-ifft-fftshift-and-ifftshift-in-matlab), MATLAB Central File Exchange. Retrieved .

MATLAB Release Compatibility
Created with R2008b
Compatible with any release
Platform Compatibility
Windows macOS Linux

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Version Published Release Notes
1.1.0.0

I have moved my blog (that was linked in the description). I have updated a link to the blog.
1.0.0.0