Discrete Fourier Transform of a finite sequence

Version 1.0.0.0 (1.71 KB) by Saurav Nandi
A finite sequence is taken as an array input and its DFT is calculated.
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Updated 6 Dec 2011

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DFT transforms one function into another, which is called the frequency domain representation, or simply the DFT, of the original function (which is often a function in the time domain). But the DFT requires an input function that is discrete and whose non-zero values have a limited (finite) duration.
Unlike the discrete-time Fourier transform (DTFT), it only evaluates enough frequency components to reconstruct the finite segment that was analyzed.

Cite As

Saurav Nandi (2024). Discrete Fourier Transform of a finite sequence (https://www.mathworks.com/matlabcentral/fileexchange/34088-discrete-fourier-transform-of-a-finite-sequence), MATLAB Central File Exchange. Retrieved .

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Created with R2010a
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Version Published Release Notes
1.0.0.0