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2 <head>
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3 <title>License and Copyright - FFTW 3.3.4</title>
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4 <meta http-equiv="Content-Type" content="text/html">
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5 <meta name="description" content="FFTW 3.3.4">
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6 <meta name="generator" content="makeinfo 4.13">
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7 <link title="Top" rel="start" href="index.html#Top">
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8 <link rel="prev" href="Acknowledgments.html#Acknowledgments" title="Acknowledgments">
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9 <link rel="next" href="Concept-Index.html#Concept-Index" title="Concept Index">
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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 3.3.4, 20 September 2013).
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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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43 span.sansserif { font-family:sans-serif; font-weight:normal; }
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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 <a name="License-and-Copyright"></a>
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49 <p>
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50 Next: <a rel="next" accesskey="n" href="Concept-Index.html#Concept-Index">Concept Index</a>,
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51 Previous: <a rel="previous" accesskey="p" href="Acknowledgments.html#Acknowledgments">Acknowledgments</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">12 License and Copyright</h2>
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57
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58 <p>FFTW is Copyright © 2003, 2007-11 Matteo Frigo, Copyright
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59 © 2003, 2007-11 Massachusetts Institute of Technology.
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60
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61 <p>FFTW is free software; you can redistribute it and/or modify
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62 it under the terms of the GNU General Public License as published by
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63 the Free Software Foundation; either version 2 of the License, or
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64 (at your option) any later version.
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65
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66 <p>This program is distributed in the hope that it will be useful,
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67 but WITHOUT ANY WARRANTY; without even the implied warranty of
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68 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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69 GNU General Public License for more details.
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70
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71 <p>You should have received a copy of the GNU General Public License along
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72 with this program; if not, write to the Free Software Foundation, Inc.,
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73 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA You can also
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74 find the <a href="http://www.gnu.org/licenses/gpl-2.0.html">GPL on the GNU web site</a>.
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75
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76 <p>In addition, we kindly ask you to acknowledge FFTW and its authors in
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77 any program or publication in which you use FFTW. (You are not
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78 <em>required</em> to do so; it is up to your common sense to decide
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79 whether you want to comply with this request or not.) For general
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80 publications, we suggest referencing: Matteo Frigo and Steven
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81 G. Johnson, “The design and implementation of FFTW3,”
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82 <i>Proc. IEEE</i> <b>93</b> (2), 216–231 (2005).
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83
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84 <p>Non-free versions of FFTW are available under terms different from those
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85 of the General Public License. (e.g. they do not require you to
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86 accompany any object code using FFTW with the corresponding source
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87 code.) For these alternative terms you must purchase a license from MIT's
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88 Technology Licensing Office. Users interested in such a license should
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89 contact us (<a href="mailto:fftw@fftw.org">fftw@fftw.org</a>) for more information.
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90
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91 </body></html>
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92
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