Re: Odd result from Sum
- To: mathgroup at smc.vnet.net
- Subject: [mg49702] Re: [mg49673] Odd result from Sum
- From: János <janos.lobb at yale.edu>
- Date: Thu, 29 Jul 2004 07:43:14 -0400 (EDT)
- References: <200407271100.HAA11169@smc.vnet.net>
- Sender: owner-wri-mathgroup at wolfram.com
Can you go from -Infinity ?
Then it does not look so frightening:
Sum[(-1)^n*((2*n + 1)/
( z^2 + n*((n + 1)/2))),
{n, -Infinity, Infinity}]
\!\(\(-2\)\ \((¹\ Cot[\(3\
¹\)\/4 - 1\/4\ ¹\ \@\(1 - 8\ z\^2\)] + ¹\
Cot[\(3\ ¹\)\/4 + 1\/4\ ¹\ \@\(1 - 8\ z\^2\)])\)\)
J?nos
On Jul 27, 2004, at 7:00 AM, Richard Gass wrote:
> Sum[(-1)^n*((2*n + 1)/
> (z^2 + n*((n + 1)/2))),
> {n, 0, Infinity}]
-------------------------------------------------
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hunt, during a war or before an election
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- References:
- Odd result from Sum
- From: Richard Gass <gass@physics.uc.edu>
- Odd result from Sum