NFFT  3.3.1
legendre.h
00001 /*
00002  * Copyright (c) 2002, 2016 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 
00027 #ifndef LEGENDRE_H
00028 #define LEGENDRE_H
00029 
00030 #include "infft.h"
00031 
00036 void alpha_al_row(R *alpha, const int N, const int n);
00037 void beta_al_row(R *beta, const int N, const int n);
00038 void gamma_al_row(R *gamma, const int N, const int n);
00039 
00049 void alpha_al_all(R *alpha, const int N);
00050 
00060 void beta_al_all(R *beta, const int N);
00061 
00071 void gamma_al_all(R *gamma, const int N);
00072 
00088 void eval_al(R *x, R *y, const int size, const int k, R *alpha,
00089   R *beta, R *gamma);
00090 
00107 int eval_al_thresh(R *x, R *y, const int size, const int k, R *alpha,
00108   R *beta, R *gamma, R threshold);
00109 /* \} */
00110 #endif