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