Mathc initiation/Fichiers h : c61a9
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x_fdydz.h |
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/* ---------------------------------- */
/* save as x_fdydz.h */
/* ---------------------------------- */
double fint_dyz(
double (*P_M)(double x, double y, double z),
double (*P_N)(double x, double y, double z),
double (*P_P)(double x, double y, double z),
double (*P_k)(double y, double z),
double (*P_u)(double z),
double (*P_v)(double z),
int ny,
double z,
double h
)
{
p2d p;
v3d n;
int i = 0;
double l = 0.;
double M = 0.;
for(i = 0; i <= ny; i++)
{
if(i ==0 || i== ny){l = 1.;}
else if(fmod(i,2) == 0){l = 2.;}
else {l = 4.;}
p.x = ((*P_u)(z)) + i*(((*P_v)(z))-((*P_u)(z)))/ny;
p.y = z;
n = n_yz((*P_k), p, h);
M += l * ( ( n.i*(*P_M)( (*P_k)(p.x,p.y), p.x, p.y ) +
n.j*(*P_N)( (*P_k)(p.x,p.y), p.x, p.y ) +
n.k*(*P_P)( (*P_k)(p.x,p.y), p.x, p.y ) ) *
sqrt( pow(fxy_x((*P_k),h,p),2) +
pow(fxy_y((*P_k),h,p),2) +
1)
);
}
return( ((((*P_v)(z)) -((*P_u)(z)))*M) / (3*ny) );
}
/* ---------------------------------- */
double flux_dydz(
double (*P_M)(double x, double y, double z),
double (*P_N)(double x, double y, double z),
double (*P_P)(double x, double y, double z),
double (*P_k)(double y, double z),
double (*P_u)(double z),
double (*P_v)(double z),
int ny,
double az,
double bz,
int nz,
double h
)
{
int i = 0;
double l = 0.;
double M = 0.;
for(i = 0; i <= nz; i++)
{
if(i ==0 || i== nz){l = 1.;}
else if(fmod(i,2) == 0){l = 2.;}
else {l = 4.;}
M += l * fint_dyz( (*P_M),(*P_N),(*P_P),
(*P_k), (*P_u),(*P_v),
ny,
(az + i*(bz-az)/nz),
h);
}
return( ((bz -az)*M) / (3*nz) );
}
/* ---------------------------------- */
/* ---------------------------------- */
Déclaration des fichiers h.