On Sep 4, 2010, at 13:54 , Cary Cherng wrote:

And thats another problem. How do I tell sage to give me the
denominator of this rational function?

In general, the .denominator and .numerator methods will (should) give you the components of a "rational" element.

HTH

Justin

--
Justin C. Walker, Curmudgeon at Large
Institute for the Absorption of Federal Funds
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If it weren't for carbon-14, I wouldn't date at all.
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