Mathc initiation/Fichiers h : c41a3

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	`fa.h`

/* --------------------------------- */
/* save as fa.h                      */
/* --------------------------------- */
double f(
double x,
double y)
{
 return(      (-x*x - 4*x - y*y + 2*y - 1) );
}
/* --------------------------------- */
char  feq[] = "-x**2 - 4*x - y**2 + 2*y - 1";
/* --------------------------------- */
double f_xy(
double x,
double y)
{
 return(        ( 0 )  );
}
/* --------------------------------- */
char feq_xy[] = "0";
/* --------------------------------- */
/* --------------------------------- */

	`fb.h`

/* --------------------------------- */
/* save as fb.h                      */
/* --------------------------------- */
double f(
double x,
double y)
{
 return(      (x*x + 4*y*y - x + 2*y) );
}
/* --------------------------------- */
char  feq[] = "x**2 + 4*y**2 - x + 2*y";
/* --------------------------------- */
double f_xy(
double x,
double y)
{
 return(        ( 0 )  );
}
/* --------------------------------- */
char feq_xy[] = "0";
/* --------------------------------- */
/* --------------------------------- */

	`fc.h`

/* --------------------------------- */
/* save as fc.h                      */
/* --------------------------------- */
double f(
double x,
double y)
{
 return(     (x*x*x + 3*x*y - y*y*y) );
}
/* --------------------------------- */
char  feq[] = "x**3 + 3*x*y - y**3";
/* --------------------------------- */
double f_xy(
double x,
double y)
{
 return(        ( 3 )  );
}
/* --------------------------------- */
char feq_xy[] = "3";
/* --------------------------------- */
/* --------------------------------- */