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Developer(s) Paul N. Swarztrauber
Initial release April 1985
Written in Fortran
Type Numerical software
License public domain
Website www.netlib.org/fftpack/

FFTPACK is a package of Fortran subroutines for the fast Fourier transform. It includes complex, real, sine, cosine, and quarter-wave transforms. It was developed by Paul Swarztrauber of the National Center for Atmospheric Research, and is included in the general-purpose mathematical library SLATEC.

Much of the package is also available in C and Java translations.


See also[edit]