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Re: Summation without Mathematica

• To: mathgroup at smc.vnet.net
• Subject: [mg27433] Re: Summation without Mathematica
• From: "Paul Lutus" <nospam at nosite.com>
• Date: Sun, 25 Feb 2001 20:55:36 -0500 (EST)
• References: <97a7hg$al7@smc.vnet.net>
• Sender: owner-wri-mathgroup at wolfram.com

" mrtommorris" <mor3752 at alltel.net> wrote in message
news:97a7hg$al7 at smc.vnet.net...
> Can someone help me to evaluate the sum from x=1 to infinity for the
> expression x^3(7/8)^x. I know the formulas that will evaluate either
alone.
> But the product is giving me difficulty.

I am not sure what sort of result you want here. The summation from x = 1 to
x = Infinity simply produces a number, 18872.

--
Paul Lutus
www.arachnoid.com