fftpack5_test, a FORTRAN90 code which calls fftpack5(), which computes Fast Fourier Transforms, by Paul Swarztrauber and Dick Valent;
The computer code and data files described and made available on this web page are distributed under the MIT license
fftpack5, a FORTRAN90 code which computes Fast Fourier Transforms (FFTs), by Paul Swarztrauber and Dick Valent;