Mathc initiation/Fichiers h : c63a9
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x_fluzyx.h |
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/* --------------------------------- */
/* save as x_fluzyx.h */
/* --------------------------------- */
double flux_z_dzdydx(
double (*P_f)(double x, double y, double z),
double (*P_fxyz_n)( double (*P_f)(double x, double y, double z), double h, pt3d n),
double (*P_u)(double x, double y),
double (*P_v)(double x, double y),
int nz,
double y,
double x
)
{
pt3d n;
int i = 0;
double m = 0.;
double M = 0.;
for(i = 0; i <= nz; i++)
{
if(i ==0 || i== nz){m = 1.;}
else if(fmod(i,2) == 0){m = 2.;}
else {m = 4.;}
n.x = x;
n.y = y;
n.z = ((*P_u)(x,y)) + i*(((*P_v)(x,y))-((*P_u)(x,y)))/nz;
M += m * (*P_fxyz_n)((*P_f),H,n);
}
return( ((((*P_v)(x,y)) -((*P_u)(x,y)))*M) / (3*nz) );
}
/* --------------------------------- */
double flux_y_dzdydx(
double (*P_f)(double x, double y, double z),
double (*P_fxyz_n)( double (*P_f)(double x, double y, double z), double h, pt3d ny),
double (*P_u)(double x, double y),
double (*P_v)(double x, double y),
int nz,
double (*P_s)(double x),
double (*P_t)(double x),
int ny,
double x
)
{
int i = 0;
double m = 0.;
double M = 0.;
for(i = 0; i <= ny; i++)
{
if(i ==0 || i== ny){m = 1.;}
else if(fmod(i,2) == 0){m = 2.;}
else {m = 4.;}
M += m * flux_z_dzdydx( (*P_f),
(*P_fxyz_n),
(*P_u),(*P_v),nz,
(((*P_s)(x))+i*(((*P_t)(x))-((*P_s)(x)))/ny),
x);
}
return( ((((*P_t)(x)) -((*P_s)(x)))*M) / (3*ny) );
}
/* --------------------------------- */
double flux_dzdydx(
double (*P_f)(double x, double y, double z),
double (*P_fxyz_n)( double (*P_f)(double x, double y, double z), double h, pt3d ny),
double (*P_u)(double x, double y),
double (*P_v)(double x, double y),
int nz,
double (*P_s)(double x),
double (*P_t)(double x),
int ny,
double ax,
double bx,
int nx
)
{
int i = 0;
double m = 0.;
double M = 0.;
for(i = 0; i <= nx; i++)
{
if(i ==0 || i== nx){m = 1.;}
else if(fmod(i,2) == 0){m = 2.;}
else {m = 4.;}
M += m * flux_y_dzdydx( (*P_f),
(*P_fxyz_n),
(*P_u),(*P_v),nz,
(*P_s),(*P_t),ny,
(ax+i*(bx-ax)/nx));
}
return( ((bx -ax)*M) / (3*nx) );
}
/* --------------------------------- */
/* --------------------------------- */
Déclaration des fichiers h.