fxt

fxt is a library package coming as C++ source code
containing code for:
fast Fourier transforms (FFTs)
fast Hartley transform (FHTs)
number theoretic transforms (NTTs)
fast Walsh transform
convolution-, correlation- and power spectrum and much more, see fxt.htm for the exciting details.

fxt this directory
00readme.htm this file
fxtbook.dvi, fxtbook.ps fxtbook.pdf, tutorial text on fast fourier transforms, in dvi, postscript and pdf format
fxt.h-doc.txt doc-oid of fxt (generated from fxt.h)
fxt/fxt directory with the whole library for LINUX
fxt/fxtd directory with the whole library for MS DOS