Bill Daly on Wed, 01 Jul 2009 22:49:29 +0200

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How do I ... (A12-140)

I can't seem to find a function that does this in PARI, but I suspect there is one, that I've forgotten about.

I have a vector of Polmods, and another Polmod which I know to be a rational linear function of the components of the vector. How can I get PARI to calculate this for me?

A possibly related question: I have a vector of multivariate polynomial expressions, and another expression that I know is a rational combination of the vector components (not necessarily linear, but I might be able to force it to be linear). Is there a PARI function to solve this sort of problem?

Regards, Bill