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Convert expression to polynomial

  • To: mathgroup at
  • Subject: [mg70383] Convert expression to polynomial
  • From: "Diana" <diana.mecum at>
  • Date: Sun, 15 Oct 2006 00:18:45 -0400 (EDT)

Math folks,

I am generating a list of partial sums which look like:

x = 1 + (-t + t^2)^(-1) + 1/((-t + t^2)^2*(-t + t^4)) +  1/((-t +
t^2)^4*(-t + t^4)^2*(-t + t^8))

I then try to calculate the PolynomialQuotient[Numerator[x],
Denominator[x], t], etc., and I get an error saying that x is not a
polynomial function.

I tried to find the command to put everything over a common
denominator, but was unable to find this. Can someone help?


Diana M.

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