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RE: Bug in O[x]

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

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

DrBob

www.eclecticdreams.net


-----Original Message-----
From: Boris_Hollas [mailto:No.hollas at informatik.uni-ulm.de.Spam] 
To: mathgroup at smc.vnet.net
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