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
     number 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 4.1                    July 18, 2013                   DragonFly 4.1