Re: Compute ArcTan(n Pi+ Pi/2 + O(1))
- To: mathgroup at smc.vnet.net
- Subject: [mg95883] Re: Compute ArcTan(n Pi+ Pi/2 + O(1))
- From: Jens-Peer Kuska <kuska at informatik.uni-leipzig.de>
- Date: Thu, 29 Jan 2009 05:54:08 -0500 (EST)
- Organization: Uni Leipzig
- References: <glpfdv$kje$1@smc.vnet.net>
- Reply-to: kuska at informatik.uni-leipzig.de
Hi,
Series[ArcTan[n Pi + Pi/2], {n, Infinity, 2}]
??
Regards
Jens
Francois at news.free.fr wrote:
> Hello,
>
> I'm new to Mathematica and I want to compute a serie expantion of
>
> ArcTan(n Pi + Pi/2 + O(1)) (The O is a big O and is taken when n goes
> to Infinity)
>
> I dont know how to input O(1) in Mathematica. For example
> O[n,Infinity]^0 simplifies to 1 which is not what I want.
>
> Thanks for the help.
> Francois
>
>