#!/usr/bin/env python
     # encoding: utf-8
     #
     # Copyright (c) 2010 Doug Hellmann.  All rights reserved.
     #
     """Logarithms close to zero.
     """
     #end_pymotw_header
     
     import math
     
     x = 0.0000000000000000000000001
     print 'x       :', x
     print '1 + x   :', 1+x
     print 'log(1+x):', math.log(1+x)
     print 'log1p(x):', math.log1p(x)