Mathc initiation/Fichiers h : c64a7

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	x_fluyzx.h

/* --------------------------------- */
/* save as x_fluyzx.h                */
/* --------------------------------- */
double flux_y_dydzdx(

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 (*Py0)(double x, double z),
double (*Py1)(double x, double z),
   int   ny,
   
double    z,

double    x
)
{
pt3d n;
   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.;}

          n.x = x;
          n.y = ((*Py0)(x,z)) + i*(((*Py1)(x,z))-((*Py0)(x,z)))/ny;
          n.z = z;

  M += m *  (fxyz_x((*P_M),H,n) + fxyz_y((*P_N),H,n) + fxyz_z((*P_P),H,n)) ;

  }

  return( ((((*Py1)(x,z)) -((*Py0)(x,z)))*M) / (3*ny) );
}
/* --------------------------------- */
double flux_z_dydzdx(

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 (*Py0)(double x, double z),
double (*Py1)(double x, double z),
   int ny,
   
double (*Pz0)(double x),
double (*Pz1)(double x),
   int nz,

double x
)
{
   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.;}

  M += m * flux_y_dydzdx(
                             (*P_M),
                             (*P_N),
                             (*P_P),
                             
                             (*Py0),
                             (*Py1),
                               ny,
                               
                           (((*Pz0)(x))+i*(((*Pz1)(x))-((*Pz0)(x)))/nz),
                           
                                x);
 }

 return( ((((*Pz1)(x)) -((*Pz0)(x)))*M) / (3*nz) );
}
/* --------------------------------- */
double flux_dydzdx(

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 (*Py0)(double x, double z),
double (*Py1)(double x, double z),
   int ny,

double (*Pz0)(double x),
double (*Pz1)(double x),
   int   nz,

double   x0,
double   x1,
   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_z_dydzdx(
                             (*P_M),
                             (*P_N),
                             (*P_P),
                             
                             (*Py0),
                             (*Py1),
                               ny,
                               
                             (*Pz0),
                             (*Pz1),
                               nz,
                             
                             (x0+i*(x1-x0)/nx));
 }

  return( ((x1 -x0)*M) / (3*nx) );
}
/* --------------------------------- */
/* --------------------------------- */