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/*
* Copyright (c) 1999-2000 Jean-Alain Marck
* Copyright (c) 1999-2001 Eric Gourgoulhon
* Copyright (c) 1999-2001 Philippe Grandclement
*
* 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
*
*/
char op_sxpun_C[] = "$Header: /cvsroot/Lorene/C++/Source/Non_class_members/Operators/op_sxpun.C,v 1.6 2014/10/13 08:53:26 j_novak Exp $" ;
/*
* Ensemble des routines de base de division par rapport a x+1
* (Utilisation interne)
*
* void _sx_XXXX(Tbl * t, int & b)
* t pointeur sur le Tbl d'entree-sortie
* b base spectrale
*
*/
/*
* $Id: op_sxpun.C,v 1.6 2014/10/13 08:53:26 j_novak Exp $
* $Log: op_sxpun.C,v $
* Revision 1.6 2014/10/13 08:53:26 j_novak
* Lorene classes and functions now belong to the namespace Lorene.
*
* Revision 1.5 2014/10/06 15:16:06 j_novak
* Modified #include directives to use c++ syntax.
*
* Revision 1.4 2008/08/19 06:42:00 j_novak
* Minor modifications to avoid warnings with gcc 4.3. Most of them concern
* cast-type operations, and constant strings that must be defined as const char*
*
* Revision 1.3 2007/12/21 13:59:02 j_novak
* Suppression of call to pow(-1, something).
*
* Revision 1.2 2007/12/20 09:11:08 jl_cornou
* Correction of an error in op_sxpun about Jacobi(0,2) polynomials
*
* Revision 1.1 2007/12/11 15:42:23 jl_cornou
* Premiere version des fonctions liees aux polynomes de Jacobi(0,2)
*
* Revision 1.2 2004/11/23 15:16:01 m_forot
*
* Added the bases for the cases without any equatorial symmetry
* (T_COSSIN_C, T_COSSIN_S, T_LEG, R_CHEBPI_P, R_CHEBPI_I).
*
* Revision 1.1.1.1 2001/11/20 15:19:29 e_gourgoulhon
* LORENE
*
* Revision 2.5 2000/09/07 12:50:48 phil
* *** empty log message ***
*
* Revision 2.4 2000/02/24 16:42:59 eric
* Initialisation a zero du tableau xo avant le calcul.
*
* Revision 2.3 1999/11/15 16:39:17 eric
* Tbl::dim est desormais un Dim_tbl et non plus un Dim_tbl*.
*
* Revision 2.2 1999/10/18 13:40:11 eric
* Suppression de la routine _sx_r_chebu car doublon avec _sxm1_cheb.
*
* Revision 2.1 1999/09/13 11:35:42 phil
* gestion des cas k==1 et k==np
*
* Revision 2.0 1999/04/26 14:59:42 phil
* *** empty log message ***
*
*
* $Header: /cvsroot/Lorene/C++/Source/Non_class_members/Operators/op_sxpun.C,v 1.6 2014/10/13 08:53:26 j_novak Exp $
*
*/
// Fichier includes
#include "tbl.h"
#include <cmath>
//-----------------------------------
// Routine pour les cas non prevus --
//-----------------------------------
namespace Lorene {
void _sxpun_pas_prevu(Tbl * tb, int& base) {
cout << "sxpun pas prevu..." << endl ;
cout << "Tbl: " << tb << " base: " << base << endl ;
abort () ;
exit(-1) ;
}
//-------------
// Identite ---
//-------------
void _sxpun_identite(Tbl* , int& ) {
return ;
}
//--------------
// cas R_JACO02-
//--------------
void _sxpun_r_jaco02(Tbl* tb, int&)
{
// Peut-etre rien a faire ?
if (tb->get_etat() == ETATZERO) {
return ;
}
// Pour le confort
int nr = (tb->dim).dim[0] ; // Nombre
int nt = (tb->dim).dim[1] ; // de points
int np = (tb->dim).dim[2] ; // physiques REELS
np = np - 2 ; // Nombre de points physiques
// pt. sur le tableau de double resultat
double* xo = new double [tb->get_taille()];
// Initialisation a zero :
for (int i=0; i<tb->get_taille(); i++) {
xo[i] = 0 ;
}
// On y va...
double* xi = tb->t ;
double* xci = xi ; // Pointeurs
double* xco = xo ; // courants
int borne_phi = np + 1 ;
if (np == 1) {
borne_phi = 1 ;
}
for (int k=0 ; k< borne_phi ; k++)
if (k==1) {
xci += nr*nt ;
xco += nr*nt ;
}
else {
for (int j=0 ; j<nt ; j++) {
xco[nr-1] = 0 ;
double somme ;
for (int i = 0 ; i < nr-1 ; i++) {
somme = 0 ;
for (int m = i+1 ; m < nr ; m++) {
int signe = ((m-1-i)%2 == 0 ? 1 : -1) ;
somme += signe*((m+1)*(m+2)/double((i+1)*(i+2))-(i+1)*(i+2)/double((m+1)*(m+2)))*xci[m] ;
}
xco[i] = (2*i+3)/double(4)*somme ;
}
xci += nr ;
xco += nr ;
} // Fin de la boucle sur theta
} // Fin de la boucle sur phi
// On remet les choses la ou il faut
delete [] tb->t ;
tb->t = xo ;
// base de developpement
// inchangée
}
}
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