/* ---------------------------------- */
/* save as fd.h                      */
/* --------------------------------- */
double f(
double x,
double y,
double z)
{
 return( (1) );
}
char  feq[] = "1";
/* --------------------------------- */
double uy(
double x,
double z)
{
 return(0);
}
char  ueq[] = "0";
/* --------------------------------- */
double vy(
double x,
double z)
{
 return((6-z));
}
char  veq[] = "6-z";
/* --------------------------------- */
double sz(
double x)
{
 return((3*x*x));
}
char  seq[] = "3*x**2";
/* --------------------------------- */
double tz(
double x)
{
 return((4-x*x));
}
char  teq[] = "4-x**2";
/* --------------------------------- */