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Re: Evaluating expression: help


Marco,


Sum[q^(6*(n + 1/3)^2)*y^(12*(n + 1/3)), {n, -5, 5}] // Simplify // InputForm

    (q^(2/3)*(q^130 + q^80*y^12 + q^42*y^24 + q^16*y^36 + q^2*y^48 + y^60 +
   q^10*y^72 + q^32*y^84 + q^66*y^96 + q^112*y^108 + q^170*y^120))/y^56


"Marco de Innocentis" <mdeinnocentis at hotmail.com> wrote in message
news:88g54e$4es at smc.vnet.net...
> I need to evaluate expressions like the following
>
> Sum (from n = -5 to +5) q^(6*(n + 1/3)^2)*y^(12*(n + 1/3))
>
> Is it possible to do this from Mathematica? If not,
> which other programs can be used?
> Thanks,
>
> Marco
>
>
> Sent via Deja.com http://www.deja.com/
> Before you buy.
>



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