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Kevin Ryde on Sun, 15 May 2016 09:18:36 +0200
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periodic generating function
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- To: pari-users@pari.math.u-bordeaux.fr
- Subject: periodic generating function
- From: Kevin Ryde <user42_kevin@yahoo.com.au>
- Date: Sun, 15 May 2016 17:06:43 +1000
- Delivery-date: Sun, 15 May 2016 09:18:36 +0200
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To notice a periodic part in a generating function I think I want to
find whether a denominator polynomial is a divisor of 1 - C*x^p, for
some constant C and some power p. What would be a good way to do that?
I got the effect I wanted by working upwards determining successive
terms of quotient until only a high term (or stop if too long).
Coefficients might be complex or quad and I'm happy for C to be
likewise.