21 char ope_helmholtz_minus_pseudo_1d_solh_C[] =
"$Header: /cvsroot/Lorene/C++/Source/Ope_elementary/Ope_helmholtz_minus_pseudo_1d/ope_helmholtz_minus_pseudo_1d_solh.C,v 1.4 2014/10/13 08:53:34 j_novak Exp $" ;
30 #include <gsl/gsl_sf_bessel.h>
33 #include "ope_elementary.h"
39 Tbl _solh_helmholtz_minus_pseudo_1d_pas_prevu (
int,
int,
40 double,
double,
double) {
42 cout <<
" Solution homogene pas prevue ..... : "<< endl ;
53 Tbl _solh_helmholtz_minus_pseudo_1d_r_chebu (
int n,
int l,
55 double alpha,
double) {
60 double* coloc =
new double[n] ;
62 int * deg =
new int[3] ;
67 for (
int i=0 ; i<n-1 ; i++) {
68 double air = 1./(alpha*(-1-
cos(M_PI*i/(n-1)))) ;
69 if ((l !=0) && (l!=1))
70 coloc[i] = gsl_sf_bessel_kl_scaled (l-1, masse*air) /
exp(masse*air) * air;
72 coloc[i] =
exp(-masse*air) ;
76 cfrcheb(deg, deg, coloc, deg, coloc) ;
77 for (
int i=0 ; i<n ;i++)
78 res.set(i) = coloc[i] ;
90 static Tbl (*solh_helmholtz_minus_pseudo_1d[
MAX_BASE]) (int, int, double, double, double) ;
97 solh_helmholtz_minus_pseudo_1d[i] = _solh_helmholtz_minus_pseudo_1d_pas_prevu ;
100 solh_helmholtz_minus_pseudo_1d[
R_CHEBU >>
TRA_R] = _solh_helmholtz_minus_pseudo_1d_r_chebu ;
109 val_lim *=
sqrt (
double(2)) ;
120 for (
int i=0 ; i<
nr ; i++)
121 auxi.
set(i) = res(0,i) ;
124 val_one *=
sqrt (
double(2)) ;
131 for (
int i=0 ; i<
nr ; i++)
132 auxi.
set(i) = res(1,i) ;
135 val_two *=
sqrt(
double(2)) ;