Sum
- To: mathgroup at smc.vnet.net
- Subject: [mg55175] Sum
- From: mjumbo <mjumbo at nm.ru>
- Date: Wed, 16 Mar 2005 05:35:51 -0500 (EST)
- Sender: owner-wri-mathgroup at wolfram.com
Can sombody explain me why
Sum[Exp[- k], {k, 0, Infinity}]
gives the correct result, while the following (imho equivalent) statements
x = Exp[-k]
Sum[x, {k, 0, Infinity}]
don't? What should I do to make it work? It is rather vexing to copy/paste long expressions instead of using short placeholders like x.
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