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name : README 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 http://fftw.org/ for extensive benchmarks.) To achieve this performance, FFTW uses novel code-generation and runtime self-optimization techniques (along with many other tricks). The doc/ directory contains the manual in texinfo, PDF, info, and HTML formats. Frequently asked questions and answers can be found in the doc/FAQ/ directory in ASCII and HTML. For a quick introduction to calling FFTW, see the "Tutorial" section of the manual. INSTALLATION ------------ If you have downloaded an official release, please read chapter 10 "Installation and Customization" of the manual. In short: ./configure make make install If you are using the git repository, install ocaml, autoconf, automake, and libtool, and execute the bootstrap.sh script. Most of the source code of fftw is generated automatically, and this script generates all the required source files. CONTACTS -------- FFTW was written by Matteo Frigo and Steven G. Johnson. You can contact them at fftw@fftw.org. The latest version of FFTW, benchmarks, links, and other information can be found at the FFTW home page (http://www.fftw.org). You can also sign up to the fftw-announce Google group to receive (infrequent) updates and information about new releases.