Introduction
Temperton's FFT routines perform multiple Fast Fourier Transforms. It performs a number of simultaneous complex periodic fourier transforms or corresponding inverse transforms. That is, given a set of real gridpoint vectors, the package returns a set of complex fourier coefficient vectors, or vice versa. the length of the transforms must be a number greater than 1 that has no prime factors other than 2, 3, and 5
List of functionsÂ
Name | Purpose |
FAX | calculate factors for FFT |
FFTRIG | Trigonometric calculations for FFT |
FFT99 | multiple fast fourier transform |
FFT991 | multiple fast fourier transform |
SET99 | initialise fast fourier transform |
SYMINV | invert a symmetric matrix |