legendre.h

/*
 * Copyright (c) 2002, 2017 Jens Keiner, Stefan Kunis, Daniel Potts
 *
 * This program is free software; you can redistribute it and/or modify it under
 * the terms of the GNU General Public License as published by the Free Software
 * Foundation; either version 2 of the License, or (at your option) any later
 * version.
 *
 * This program is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
 * FOR A PARTICULAR PURPOSE.  See the GNU General Public License for more
 * details.
 *
 * You should have received a copy of the GNU General Public License along with
 * this program; if not, write to the Free Software Foundation, Inc., 51
 * Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
 */

#ifndef LEGENDRE_H
#define LEGENDRE_H

#include "infft.h"

void alpha_al_row(R *alpha, const int N, const int n);
void beta_al_row(R *beta, const int N, const int n);
void gamma_al_row(R *gamma, const int N, const int n);

void alpha_al_all(R *alpha, const int N);

void beta_al_all(R *beta, const int N);

void gamma_al_all(R *gamma, const int N);

void eval_al(R *x, R *y, const int size, const int k, R *alpha,
  R *beta, R *gamma);

int eval_al_thresh(R *x, R *y, const int size, const int k, R *alpha,
  R *beta, R *gamma, R threshold);
/* \} */
#endif