21 char ope_helmholtz_minus_2d_solh_C[] =
"$Header: /cvsroot/Lorene/C++/Source/Ope_elementary/Ope_helmholtz_minus_2d/ope_helmholtz_minus_2d_solh.C,v 1.4 2014/10/13 08:53:33 j_novak Exp $" ;
30 #include <gsl/gsl_sf_bessel.h>
33 #include "ope_elementary.h"
39 Tbl _solh_helmholtz_minus_2d_pas_prevu (
int,
int,
double,
double,
double) {
41 cout <<
" Solution homogene pas prevue ..... : "<< endl ;
52 Tbl _solh_helmholtz_minus_2d_r_cheb (
int n,
int l,
double masse,
double alpha,
double beta) {
55 double echelle = beta / alpha ;
59 double* coloc =
new double[n] ;
61 int * deg =
new int[3] ;
67 for (
int i=0 ; i<n ; i++)
68 coloc[i] = gsl_sf_bessel_In (l, masse*alpha*(echelle-
cos(M_PI*i/(n-1)))) ;
70 cfrcheb(deg, deg, coloc, deg, coloc) ;
71 for (
int i=0 ; i<n ;i++)
72 res.set(0, i) = coloc[i] ;
75 for (
int i=0 ; i<n ; i++)
76 coloc[i] = gsl_sf_bessel_Kn (l, masse*alpha*(echelle-
cos(M_PI*i/(n-1)))) ;
78 cfrcheb(deg, deg, coloc, deg, coloc) ;
79 for (
int i=0 ; i<n ;i++)
80 res.set(1, i) = coloc[i] ;
92 Tbl _solh_helmholtz_minus_2d_r_chebu (
int n,
int l,
double masse,
93 double alpha,
double) {
98 double* coloc =
new double[n] ;
100 int * deg =
new int[3] ;
105 for (
int i=0 ; i<n-1 ; i++)
106 coloc[i] = gsl_sf_bessel_Kn (l, masse/alpha/(-1-
cos(M_PI*i/(n-1)))) ;
109 cfrcheb(deg, deg, coloc, deg, coloc) ;
110 for (
int i=0 ; i<n ;i++)
111 res.set(i) = coloc[i] ;
123 static Tbl (*solh_helmholtz_minus_2d[
MAX_BASE]) (int, int, double, double, double) ;
130 solh_helmholtz_minus_2d[i] = _solh_helmholtz_minus_2d_pas_prevu ;
133 solh_helmholtz_minus_2d[
R_CHEB >>
TRA_R] = _solh_helmholtz_minus_2d_r_cheb ;
134 solh_helmholtz_minus_2d[
R_CHEBU >>
TRA_R] = _solh_helmholtz_minus_2d_r_chebu ;
143 val_lim *=
sqrt(
double(2)) ;
154 for (
int i=0 ; i<
nr ; i++)
155 auxi.
set(i) = res(0,i) ;
158 val_one *=
sqrt(
double(2)) ;
165 for (
int i=0 ; i<
nr ; i++)
166 auxi.
set(i) = res(1,i) ;
169 val_two *=
sqrt(
double(2)) ;