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FABS(3)                    Linux Programmer's Manual                   FABS(3)



NAME
       fabs, fabsf, fabsl - absolute value of floating-point number

SYNOPSIS
       #include <&lt;math.h>&gt;

       double fabs(double x);
       float fabsf(float x);
       long double fabsl(long double x);

       Link with -lm.

DESCRIPTION
       The  fabs()  functions  return the absolute value of the floating-point
       number x.

ERRORS
       No errors can occur.

CONFORMING TO
       The fabs() function conforms to SVr4, POSIX.1-2001, 4.3BSD,  C89.   The
       other functions are from C99.

SEE ALSO
       abs(3), cabs(3), ceil(3), floor(3), labs(3), rint(3)

COLOPHON
       This  page  is  part of release 3.05 of the Linux man-pages project.  A
       description of the project, and information about reporting  bugs,  can
       be found at http://www.kernel.org/doc/man-pages/.



                                  2001-06-07                           FABS(3)