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legendre.h
00001 /*
00002  * Copyright (c) 2002, 2012 Jens Keiner, Stefan Kunis, Daniel Potts
00003  *
00004  * This program is free software; you can redistribute it and/or modify it under
00005  * the terms of the GNU General Public License as published by the Free Software
00006  * Foundation; either version 2 of the License, or (at your option) any later
00007  * version.
00008  *
00009  * This program is distributed in the hope that it will be useful, but WITHOUT
00010  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
00011  * FOR A PARTICULAR PURPOSE.  See the GNU General Public License for more
00012  * details.
00013  *
00014  * You should have received a copy of the GNU General Public License along with
00015  * this program; if not, write to the Free Software Foundation, Inc., 51
00016  * Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
00017  */
00018 
00019 /* $Id: legendre.h 3775 2012-06-02 16:39:48Z keiner $ */
00020 
00029 #ifndef LEGENDRE_H
00030 #define LEGENDRE_H
00031 
00032 #include "infft.h"
00033 
00038 void alpha_al_row(R *alpha, const int N, const int n);
00039 void beta_al_row(R *beta, const int N, const int n);
00040 void gamma_al_row(R *gamma, const int N, const int n);
00041 
00051 void alpha_al_all(R *alpha, const int N);
00052 
00062 void beta_al_all(R *beta, const int N);
00063 
00073 void gamma_al_all(R *gamma, const int N);
00074 
00090 void eval_al(R *x, R *y, const int size, const int k, R *alpha,
00091   R *beta, R *gamma);
00092 
00109 int eval_al_thresh(R *x, R *y, const int size, const int k, R *alpha,
00110   R *beta, R *gamma, R threshold);
00111 /* \} */
00112 #endif

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