Richard Fateman <fateman at cs.berkeley.edu> writes:
> 4. if you need random size ffts and very fast, I have, quite by
> coincidence, set up links between the FFTW package
> and Lisp. This allows any size and may be 20X faster than Maxima's.
> Downside: I've only debugged the
> code for Allegro common lisp (free), and someone else will have to
> duplicate the foreign-function interface
> (about 1/2 page?) for any other lisp.
> http://www.cs.berkeley.edu/~fateman/cheby/fftw.lisp
If you want to use any lisp other than Allegro, maybe it would be more
sensible to use a binding based on a cross-platform FFI lib. I notice
that Kevin Rosenberg wrote one, which you can find at
http://files.b9.com/cl-fftw3/. There's even a Debian package!
Rupert
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