The function fdim computes the positive difference of its arguments

This function is compatible with the following targets:

ANSI

BeOS

EMB/RTOS

Mac OS

Palm OS

Win32

#include <math.h>

double fdim ( double x, double y );

Parameters for this function are:

x	double	Value one
y	double	Value two

This function returns the value of x - y if x is greater than y else zero. If x is less than or equal to y a range error may occur