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MathGroup Archive 2001

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Re: Summation without Mathematica

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

" mrtommorris" <mor3752 at> wrote in message
news:97a7hg$al7 at
> 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
> 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

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