FABS(3) |
Library Functions Manual |
FABS(3) |
NAME
fabs, fabsf — floating-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.
STANDARDS
The fabs() function conforms to ANSI X3.159-1989 (“ANSI C89”).