<mathematics> A technique for expressing a waveform as a weighted sum of sines and cosines.
Computers generally rely on the version known as discrete Fourier transform.
Named after J. B. Joseph Fourier (1768 -- 1830).
See also wavelet, discrete cosine transform.
(1997-03-9)
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Nearby terms: four-colour glossies « four colour map theorem « four colour theorem « Fourier transform » fourth generation computer » fourth generation language » fourth normal form
