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MathGroup Archive 2004

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RE: Bug in O[x]

  • To: mathgroup at
  • Subject: [mg48256] RE: [mg48233] Bug in O[x]
  • From: "DrBob" <drbob at>
  • Date: Wed, 19 May 2004 05:20:53 -0400 (EDT)
  • Sender: owner-wri-mathgroup at

Those answers look right to me. What do you think they should be?


-----Original Message-----
From: Boris_Hollas [mailto:No.hollas at] 
To: mathgroup at
Subject: [mg48256] [mg48233] Bug in O[x]

Have a look at this:

Mathematica 5.0 for Linux
Copyright 1988-2003 Wolfram Research, Inc.
 -- Motif graphics initialized --

In[1]:= (1+O[x])^2

Out[1]= 1 + O[x]

In[2]:= (1/x+O[x])^2

         -2       0
Out[2]= x   + O[x]

In[3]:= (1+O[x])^3

Out[3]= 1 + O[x]

Obviously something is wrong with the O function in Mathematica 5.

Boris Hollas

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