135 #include "proto_f77.h" 139 int* facto_ini(
int ) ;
140 double* trigo_ini(
int ) ;
141 double* cheb_ini(
const int) ;
142 double* chebimp_ini(
const int ) ;
145 void citcosi(
const int* deg,
const int* dimc,
double* cf,
const int* dimf,
164 cout <<
"citcosi: nt > n2f : nt = " << nt <<
" , n2f = " 169 cout <<
"citcosi: nt > n2c : nt = " << nt <<
" , n2c = " 173 if ( (n1f > 1) && (n1c > n1f) ) {
174 cout <<
"citcosi: n1c > n1f : n1c = " << n1c <<
" , n1f = " 179 cout <<
"citcosi: n3c > n3f : n3c = " << n3c <<
" , n3f = " 189 int* facto = facto_ini(nm1) ;
190 double* trigo = trigo_ini(nm1) ;
193 double* sinp = cheb_ini(nt) ;
196 double* x = chebimp_ini(nt) ;
200 double* g = (
double*)( malloc( (nm1+2)*
sizeof(
double) ) ) ;
201 double* t1 = (
double*)( malloc( (nm1+2)*
sizeof(double) ) ) ;
211 int n2n3f = n2f * n3f ;
212 int n2n3c = n2c * n3c ;
220 int borne_phi = n1c-1 ;
221 if (n1f == 1) borne_phi = 1 ;
223 for (j=0; j< borne_phi; j++) {
227 for (k=0; k<n3c; k++) {
229 int i0 = n2n3c * j + k ;
230 double* cf0 = cf + i0 ;
233 double* ff0 = ff + i0 ;
238 t1[0] = .5 * cf0[0] ;
239 for (i=1; i<nm1; i++) t1[i] = .5 * ( cf0[n3c*i] + cf0[n3c*(i-1)] ) ;
240 t1[nm1] = .5 * cf0[n3c*(nt-2)] ;
258 for ( i = 3; i < nt; i += 2 ) {
259 ff0[ n3f*i ] = t1[i] - c1 ;
260 som += ff0[ n3f*i ] ;
264 double fmoins0 = nm1s2 * c1 + som ;
270 for ( i = 3; i < nt; i += 2 ) {
271 g[i] = 0.25 * ( ff0[ n3f*i ] - ff0[ n3f*(i-2) ] ) ;
284 for (i=2; i<nm1; i += 2 ) g[i] = 0.5 * t1[i] ;
291 F77_fft991( g, t1, trigo, facto, &inc, &jump, &nm1, &lot, &isign) ;
296 for ( i = 1; i < nm1s2 ; i++ ) {
300 double fp = 0.5 * ( g[i] + g[isym] ) ;
301 double fm = 0.5 * ( g[i] - g[isym] ) / sinp[i] ;
302 ff0[ n3f*i ] = ( fp + fm ) / x[isym] ;
303 ff0[ n3f*isym ] = ( fp - fm ) / x[i] ;
307 ff0[0] = g[0] + fmoins0 ;
309 ff0[ n3f*nm1s2 ] = g[nm1s2] / x[nm1s2] ;