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Re: O(1) in Mathematica

  • To: mathgroup at smc.vnet.net
  • Subject: [mg95882] Re: O(1) in Mathematica
  • From: Jens-Peer Kuska <kuska at informatik.uni-leipzig.de>
  • Date: Thu, 29 Jan 2009 05:53:57 -0500 (EST)
  • Organization: Uni Leipzig
  • References: <glpfj2$kpe$1@smc.vnet.net>
  • Reply-to: kuska at informatik.uni-leipzig.de

Hi,

try

ArcTan[1/(n + O[n]^2)]

because

ArcTan[1/(n + O[n]^1)]

would be nonsense (n is of order 1)

Regards
   Jens

Francois Fayard wrote:
> Hello,
> 
> I'd like to compute ArcTan[1/(n+O(1))] but I don't know how to enter
> O(1) with Mathematica as O[n,Infinity]^0 simplifies to 1 which is not
> what I want.
> 
> Thanks,
> Fran=E7ois
> 
> 
> 


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