NAME    [Toc]    [Back]

     fabs, fabsf - floating-point absolute value functions

SYNOPSIS    [Toc]    [Back]

     #include <math.h>

     double
     fabs(double x);

     float
     fabsf(float x);

DESCRIPTION    [Toc]    [Back]

     The fabs() function computes the absolute value of a  floating-point number
  x.   The fabsf() function is a single precision version
of fabs().

RETURN VALUES    [Toc]    [Back]

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

SEE ALSO    [Toc]    [Back]

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

STANDARDS    [Toc]    [Back]

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

OpenBSD      3.6                            May      2,      1991