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library for computing Fast Fourier Transforms

This library computes FFTs in one or more dimensions. It is extremely fast. This package contains the statically linked library and the header files.
Package version:2.1.5-1+b1


This is FFTW, a collection of fast C routines to compute the Discrete
Fourier Transform in one or more dimensions.


The doc/ directory contains the manual in texinfo, postscript, info,
and HTML formats.  Frequently asked questions and answers can be found
in the FAQ/ directory in a variety of formats (including HTML).

The fftw/ directory contains the source code for the complex 


This file contains a random collection of the various hacks we did (or
did not dare to do) in order to get performance.  It is not intended
to be complete nor up to date, but it may be instructive for people to
read (see also my (Matteo Frigo's) slides on the web page).

1) Negative constants:

        a = 0.5 * b;               a = 0.5 * b;  
        c = 0.5 * d;	           c = -0.5 * d; 


Version 2.1.5 (3/24/2003)

  * Bug fix: Fortran wrappers were disabled in version 2.1.4.

Version 2.1.4 (3/16/2003)

  * Upgraded to newer versions of autoconf, etcetera, to fix compilation
    problems on various recent systems.

  * The configure script no longer picks the wrong architecture flags
    (which caused FFTW to crash) on newer IBM POWER machines running AIX.

  * Multi-threaded trans


fftw (2.1.5-1+b1) sid; urgency=low

  * Binary-only non-maintainer upload for s390x; no source chang


2003-03-18  Steven G. Johnson  <stevenj@ab-initio>

	* fftw/fftwf77.c, rfftw/rfftwf77.c, threads/fft


The following are a number of ideas for future work that we have
thought of, or which have been sugg


This package was debianized by James A. Treacy on
Wed, 30 Sep 1998 03:09:51 -0400.

Browse inside sfftw-dev_2.1.5-1+b1_s390x.deb

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