DragonFly On-Line Manual Pages

FABS(3) 	      DragonFly Library Functions Manual	       FABS(3)

NAME

fabs, fabsf, fabsl -- floating-point absolute value functions

SYNOPSIS

#include <math.h> double fabs(double x); float fabsf(float x); long double fabsl(long double x);

DESCRIPTION

The fabs() function computes the absolute value of a floating-point num- ber x. The fabsf() function is a single precision version of fabs(). The fabsl() function is an extended precision version of fabs().

RETURN VALUES

The fabs(), fabsf() and fabsl() functions return the absolute value of x.

SEE ALSO

abs(3), ceil(3), floor(3), rint(3)

STANDARDS

The fabs() function conforms to ANSI X3.159-1989 (``ANSI C89'').

HISTORY

An fabs() function first appeared in Version 6 AT&T UNIX. DragonFly 4.3 July 18, 2013 DragonFly 4.3