Expansion happens in the power series ring as expected(?): sage: R.<x>=PowerSeriesRing(QQ,'x') sage: 1/(x^2 - x - 1) -1 + x - 2*x^2 + 3*x^3 - 5*x^4 + 8*x^5 - 13*x^6 + 21*x^7 - 34*x^8 + 55*x^9 - 89*x^10 + 144*x^11 - 233*x^12 + 377*x^13 - 610*x^14 + 987*x^15 - 1597*x^16 + 2584*x^17 - 4181*x^18 + 6765*x^19 + O(x ^20)
I personally would rather implement analytical functionality on top of the power series ring but am not an expert in either. Regards, -- You received this message because you are subscribed to the Google Groups "sage-devel" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send email to [email protected]. Visit this group at http://groups.google.com/group/sage-devel. For more options, visit https://groups.google.com/d/optout.
