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MathGroup Archive 2006

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Re: solving an equation with sums

  • To: mathgroup at
  • Subject: [mg67481] Re: solving an equation with sums
  • From: "Valeri Astanoff" <astanoff at>
  • Date: Wed, 28 Jun 2006 03:51:19 -0400 (EDT)
  • References: <e7qmi0$6lb$>
  • Sender: owner-wri-mathgroup at


If you expand your expression you can see that
all terms are of the form -a*E^(-b*x),
so, the whole expression is allways negative
and tends to zero only when x -> Infinity.
Anyway, in such a case and if there was a solution,
you better use FindRoot than Solve.



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