fdim(3) -- Linux man page

 

NAME

fdim, fdimf, fdiml - positive difference  

SYNOPSIS

#include <math.h>

double fdim(double x, double y);

float fdimf(float x, float y);

long double fdiml(long double x, long double y);

 

DESCRIPTION

These functions return max(x-y,0). If x or y or both are NaN, Nan is returned.  

CONFORMING TO

C99  

SEE ALSO

fmax(3)