Article · Wikipedia archive · Last revised May 27, 2026

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.

Last revised
May 27, 2026
Read time
≈ 1 min
Length
109 w
Citations
Source
FFTPACK
DeveloperPaul N. Swarztrauber
Initial releaseApril 1985
Written inFortran
TypeNumerical software
Licensepublic domain
Websitewww.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

See also

References

References