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1 FFTW is a free collection of fast C routines for computing the
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2 Discrete Fourier Transform in one or more dimensions. It includes
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3 complex, real, symmetric, and parallel transforms, and can handle
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4 arbitrary array sizes efficiently. FFTW is typically faster than
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5 other publically-available FFT implementations, and is even
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6 competitive with vendor-tuned libraries. (See our web page for
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7 extensive benchmarks.) To achieve this performance, FFTW uses novel
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8 code-generation and runtime self-optimization techniques (along with
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9 many other tricks).
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10
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11 The doc/ directory contains the manual in texinfo, PDF, info, and HTML
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12 formats. Frequently asked questions and answers can be found in the
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13 doc/FAQ/ directory in ASCII and HTML.
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14
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15 For a quick introduction to calling FFTW, see the "Tutorial" section
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16 of the manual.
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17
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18 Installation instructions are provided in the manual (don't worry, it
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19 is straightforward).
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20
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21 CONTACTS
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22 --------
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23
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24 FFTW was written by Matteo Frigo and Steven G. Johnson. You can
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25 contact them at fftw@fftw.org. The latest version of FFTW,
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26 benchmarks, links, and other information can be found at the FFTW home
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27 page (http://www.fftw.org). You can also sign up to the fftw-announce
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28 mailing list to receive (infrequent) updates and information about new
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29 releases; to do so, go to:
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30
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31 http://www.fftw.org/mailman/listinfo/fftw-announce
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