FDIM(3)

NAME
fdim - return difference if positive, 0 otherwise

SYNOPSIS
#include <math.h>
double
fdim(double x, double y);
long double
fdiml(long double x, long double y);
float
fdimf(float x, float y);

DESCRIPTION
The fdim() functions return the "positive difference" between their arguments: x - y if x > y, +0 if x is less than or equal to y.

SEE ALSO
fma(3), fmax(3), fmin(3)

STANDARDS
The fdim() functions conform to ISO/IEC 9899:1999(E).