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 > > >