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.

FFTPACK

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

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

The pm_fftpack module of the ParaMonte library offers a 100% type-kind-generic multi-precision implementation of FFTPACK in modern Fortran.

See also

• FFTW
• LAPACK

References

• Official website
• Swarztrauber, P.N. (1982). "Vectorizing the FFTs". In Rodrigue, Garry (ed.). Parallel Computations. Academic Press. pp. 51–83. ISBN 978-0-12-592101-5.
• Wendykie, Piotr. "JTransforms". Java. Open source. Multithreaded FFT library