#!/usr/bin/env python
     # encoding: utf-8
     #
     # Copyright (c) 2010 Doug Hellmann.  All rights reserved.
     #
     """Absolute value
     """
     #end_pymotw_header
     
     import math
     
     print math.fabs(-1.1)
     print math.fabs(-0.0)
     print math.fabs(0.0)
     print math.fabs(1.1)