coeffjaco.C
/*
* Copyright (c) 2007 Jean-Louis Cornou
*
* This file is part of LORENE.
*
* LORENE 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.
*
* LORENE 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 LORENE; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
*/
/*
* $Id: coeffjaco.C,v 1.3 2014/10/13 08:53:12 j_novak Exp $
* $Log: coeffjaco.C,v $
* Revision 1.3 2014/10/13 08:53:12 j_novak
* Lorene classes and functions now belong to the namespace Lorene.
*
* Revision 1.2 2007/12/21 12:41:46 j_novak
* Removed the #include<fftw3.h> not needed here. Corrected headers.
*
* Revision 1.1 2007/12/11 15:42:21 jl_cornou
* Premiere version des fonctions liees aux polynomes de Jacobi(0,2)
*
* $Header: /cvsroot/Lorene/C++/Source/Non_class_members/Coef/coeffjaco.C,v 1.3 2014/10/13 08:53:12 j_novak Exp $
*
*/
#include "tbl.h"
namespace Lorene {
Tbl jacobipointsgl(int) ;
double* coeffjaco(int n , double* ff) {
Tbl jj = jacobipointsgl(n) ;
double som ;
int i,k ;
double* aa = new double[n+1] ;
for (k = 0 ; k < n ; k++) {
som = 3*ff[0]*jj(k,0)/(jj(n,0)*jj(n,0)) ;
for (i = 1 ; i < n+1 ; i++) {
som += ff[i]*jj(k,i)/(jj(n,i)*jj(n,i)) ;
}
aa[k] = (2*k+3)/double(n*(n+3))*som ;
}
som = 3*ff[0]/jj(n,0) ;
for (i = 1 ; i < n+1 ; i++) {
som += ff[i]/jj(n,i) ;
}
aa[n]=som/double(n+3) ;
return aa ;
}
}
Lorene::Tbl
Basic array class.
Definition tbl.h:161
Lorene
Lorene prototypes.
Definition app_hor.h:64