Re: serie
- To: mathgroup at smc.vnet.net
- Subject: [mg30158] Re: serie
- From: Jens-Peer Kuska <kuska at informatik.uni-leipzig.de>
- Date: Wed, 1 Aug 2001 02:19:13 -0400 (EDT)
- Organization: Universitaet Leipzig
- References: <9k5ql9$h9m$1@smc.vnet.net>
- Sender: owner-wri-mathgroup at wolfram.com
Hi,
In[]:=Sum[1/(i^2 + 1), {i, 1, k}] // FullSimplify
Out[]=(-1 + Pi*Coth[Pi] - I*HarmonicNumber[-I + k] +
I*HarmonicNumber[I + k])/2
Ahmet Mutlu wrote:
>
> hi
> what is the sum
>
> for i:=1 to k
> total = total + 1/(i^2 + 1)
>
> i mean, a formal sum.