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Djbfft

May 26, 2018

Extremely fast library for floating-point convolution

djbfft is an extremely fast library for floating-point convolution. The current version holds most of the speed records for double-precision FFTs on general-purpose computers.

djbfft provides power-of-2 complex FFTs, real FFTs at twice the speed, and fast multiplication of complex arrays. Single precision and double precision are equally supported.

WWW http//cr.yp.to/djbfft.html