Fast Fourier transform
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Invented by James W. Cooley and John W. Tukey in 1965 (Ref 1). The fast Fourier transform reduces the number of operations from N2 to NlnN.
Invented by James W. Cooley and John W. Tukey in 1965 (Ref 1). The fast Fourier transform reduces the number of operations from N2 to NlnN.