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Texte de la légende
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fa.h
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/* --------------------------------- */
/* 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";
/* --------------------------------- */
/* --------------------------------- */
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fb.h
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/* --------------------------------- */
/* 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";
/* --------------------------------- */
/* --------------------------------- */
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fc.h
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/* --------------------------------- */
/* 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";
/* --------------------------------- */
/* --------------------------------- */
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