FABS(3) Library Functions Manual FABS(3)
NAME
fabs, fabsffloating-point absolute value function
LIBRARY
Math Library (libm, -lm)
SYNOPSIS
#include <math.h>
double
fabs(double x);
float
fabsf(float x);
DESCRIPTION
The fabs() and fabsf() functions compute the absolute value of a floating-point number x.
RETURN VALUES
The fabs() function returns the absolute value of x.
SEE ALSO
STANDARDS
The fabs() function conforms to ANSI X3.159-1989 (“ANSI C”).