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12 May 2016 17 May 2016 1 May 2017 "FFT algorithms are so commonly employed to compute DFTs that the term 'FFT' is often used to mean 'DFT' in colloquial settings. Formally, there is a clear 3 May 2014 31 Dec 2017 15 Jul 2016 8 Nov 2015 30 Nov 2015 25 Jun 2010 Recall that the fft computes the discrete Fourier transform (DFT). Here's a plot of the DTFT magnitude of this sequence: To explain the MATLAB output we're looking at, let me show a DTFT magnitude plot that shows three periods . Documentation · Tutorials · Examples · Videos and Webinars · Training