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library for computing Fast Fourier Transforms

The FFTW library computes Fast Fourier Transforms (FFT) in one or more dimensions. It is extremely fast. This package contains the shared library versions of the fftw libraries in single, double and long double precisions. Note that on some architectures double is the same as long double in which case there is no long double library.

To get the static library and the header files, you need to install libfftw3-dev. For documentation, see libfftw3-doc.

Package version:3.3-1ubuntu1


FFTW is a free collection of fast C routines for computing the
Discrete Fourier Transform in one or more dimensions.  It includes
complex, real, symmetric, and parallel transforms, and can handle
arbitrary array sizes efficiently.  FFTW is typically faster than
other publically-available FFT implementations, and is even
competitive with vendor-tuned libraries.  (See our web page for
extensive benc


fftw3 for DEBIAN

Some of the changes made for version 3 of FFTW necessitated changes to the API,
so you will need to make (minor) changes when moving existing programs to this
version. See the documentation (in package fftw3-doc) for details.

In fftw2 separate packages included optimizations for SIMD
instructions. In fftw3 all such optimizations (x86 and powerpc) are


FFTW 3.3

* Changes since 3.3-beta1:

  - Compiling OpenMP support (--enable-openmp) now installs a
    fftw3_omp library, instead of fftw3_threads, so that OpenMP
    and POSIX threads (--enable-threads) libraries can be built
    and installed at the same time.

  - Various minor compilation fixes, corrections of manual typos, and
    improvements to the benchmark test program.

* Add support fo


fftw3 (3.3-1ubuntu1) precise; urgency=low

  * Merge with Debian; remaining changes:
    - Revert th


This package was debianized by James A. Treacy on
Tue, 22 Apr 2003 12:50:10 -0500


Browse inside libfftw3-3_3.3-1ubuntu1_i386.deb

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