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3 <title>Calling FFTW from Fortran - FFTW 3.2.1</title>
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4 <meta http-equiv="Content-Type" content="text/html">
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5 <meta name="description" content="FFTW 3.2.1">
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7 <link title="Top" rel="start" href="index.html#Top">
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8 <link rel="prev" href="FFTW-on-the-Cell-Processor.html#FFTW-on-the-Cell-Processor" title="FFTW on the Cell Processor">
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9 <link rel="next" href="Upgrading-from-FFTW-version-2.html#Upgrading-from-FFTW-version-2" title="Upgrading from FFTW version 2">
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10 <link href="http://www.gnu.org/software/texinfo/" rel="generator-home" title="Texinfo Homepage">
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11 <!--
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12 This manual is for FFTW
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13 (version 3.2.1, 5 February 2009).
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14
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15 Copyright (C) 2003 Matteo Frigo.
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16
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17 Copyright (C) 2003 Massachusetts Institute of Technology.
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18
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19 Permission is granted to make and distribute verbatim copies of
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20 this manual provided the copyright notice and this permission
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21 notice are preserved on all copies.
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22
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23 Permission is granted to copy and distribute modified versions of
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24 this manual under the conditions for verbatim copying, provided
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25 that the entire resulting derived work is distributed under the
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26 terms of a permission notice identical to this one.
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27
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28 Permission is granted to copy and distribute translations of this
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29 manual into another language, under the above conditions for
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30 modified versions, except that this permission notice may be
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31 stated in a translation approved by the Free Software Foundation.
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32 -->
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34 <style type="text/css"><!--
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44 --></style>
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45 </head>
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46 <body>
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47 <div class="node">
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48 <p>
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49 <a name="Calling-FFTW-from-Fortran"></a>
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50 Next: <a rel="next" accesskey="n" href="Upgrading-from-FFTW-version-2.html#Upgrading-from-FFTW-version-2">Upgrading from FFTW version 2</a>,
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51 Previous: <a rel="previous" accesskey="p" href="FFTW-on-the-Cell-Processor.html#FFTW-on-the-Cell-Processor">FFTW on the Cell Processor</a>,
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52 Up: <a rel="up" accesskey="u" href="index.html#Top">Top</a>
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53 <hr>
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54 </div>
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55
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56 <h2 class="chapter">7 Calling FFTW from Fortran</h2>
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57
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58 <p><a name="index-Fortran-interface-331"></a>
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59 This chapter describes the Fortran-callable interface to FFTW, which
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60 differs from the C interface only in the prefix (`<samp><span class="samp">dfftw_</span></samp>' instead
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61 of `<samp><span class="samp">fftw_</span></samp>'), and a few other minor details. The Fortran interface
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62 is included in the FFTW libraries by default, unless a Fortran compiler
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63 isn't found on your system or <code>--disable-fortran</code> is included in
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64 the <code>configure</code> flags. We assume here that the reader is already
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65 familiar with the usage of FFTW in C, as described elsewhere in this
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66 manual.
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67
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68 <ul class="menu">
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69 <li><a accesskey="1" href="Fortran_002dinterface-routines.html#Fortran_002dinterface-routines">Fortran-interface routines</a>
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70 <li><a accesskey="2" href="FFTW-Constants-in-Fortran.html#FFTW-Constants-in-Fortran">FFTW Constants in Fortran</a>
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71 <li><a accesskey="3" href="FFTW-Execution-in-Fortran.html#FFTW-Execution-in-Fortran">FFTW Execution in Fortran</a>
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72 <li><a accesskey="4" href="Fortran-Examples.html#Fortran-Examples">Fortran Examples</a>
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73 <li><a accesskey="5" href="Wisdom-of-Fortran_003f.html#Wisdom-of-Fortran_003f">Wisdom of Fortran?</a>
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74 </ul>
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75
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76 <!-- -->
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77 </body></html>
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78
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