fftpack5.1_test, a FORTRAN77 code which calls fftpack5.1(), which computes the Fast Fourier Transform, by Paul Swarztrauber and Dick Valent;
Licensed under the GNU General Public License (GPL).
Copyright (C) 1995-2004, Scientific Computing Division,
University Corporation for Atmospheric Research.
fftpack5.1, a FORTRAN77 code which computes the Fast Fourier Transform, by Paul Swarztrauber and Dick Valent;