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bluestein.h

00001 /*
00002  *  This file is part of Healpix_cxx.
00003  *
00004  *  Healpix_cxx is free software; you can redistribute it and/or modify
00005  *  it under the terms of the GNU General Public License as published by
00006  *  the Free Software Foundation; either version 2 of the License, or
00007  *  (at your option) any later version.
00008  *
00009  *  Healpix_cxx is distributed in the hope that it will be useful,
00010  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
00011  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
00012  *  GNU General Public License for more details.
00013  *
00014  *  You should have received a copy of the GNU General Public License
00015  *  along with Healpix_cxx; if not, write to the Free Software
00016  *  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
00017  *
00018  *  For more information about HEALPix, see http://healpix.jpl.nasa.gov
00019  */
00020 
00021 /*
00022  *  Healpix_cxx is being developed at the Max-Planck-Institut fuer Astrophysik
00023  *  and financially supported by the Deutsches Zentrum fuer Luft- und Raumfahrt
00024  *  (DLR).
00025  */
00026 
00027 /*
00028  *  Copyright (C) 2005 Max-Planck-Society
00029  *  \author Martin Reinecke
00030  */
00031 
00032 #ifndef PLANCK_BLUESTEIN_H
00033 #define PLANCK_BLUESTEIN_H
00034 
00035 #ifdef __cplusplus
00036 extern "C" {
00037 #endif
00038 
00039 int prime_factor_sum (int n);
00040 
00041 void bluestein_i (int n, double **tstorage);
00042 void bluestein (int n, double *data, double *tstorage, int isign);
00043 
00044 #ifdef __cplusplus
00045 }
00046 #endif
00047 
00048 #endif

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