fabs(3) Mac OS X Developer Tools Manual Page

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FABS(3)                  BSD Library Functions Manual                  FABS(3)

NAME
     fabs -- floating-point absolute value function

SYNOPSIS
     #include <math.h>

     double
     fabs(double x);

     long double
     fabsl(long double x);

     float
     fabsf(float x);

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

SPECIAL VALUES
     fabs(+-_) returns 0.

     fabs(+-infinity) returns +infinity.

SEE ALSO
     abs(3), ceil(3), floor(3), rint(3), math(3)

STANDARDS
     The fabs() functions conform to ISO/IEC 9899:1999(E).

BSD                            December 11, 2006                           BSD

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