With 7.6beta3: sage: f.numerator() a01*a10^3*u00^2*u01^2 - a00*a10^2*a11*u00^2*u01^2 - a00*a01*a10^2*u00*u01^2*u10 + a00^2*a10*a11*u00*u01^2*u10 + a01*a10^2*a11*u00*u01^2*u10 - a00*a10*a11^2*u00*u01^2*u10 - a01^2*a10^2*u01^2*u10^2 + a00*a01*a10*a11*u01^2*u10^2 - a00*a01*a10^2*u00^2*u01*u11 + a00^2*a10*a11*u00^2*u01*u11 + a01*a10^2*a11*u00^2*u01*u11 - a00*a10*a11^2*u00^2*u01*u11 + a00^2*a01*a10*u00*u01*u10*u11 - a00^3*a11*u00*u01*u10*u11 - 2*a00*a01*a10*a11*u00*u01*u10*u11 + 2*a00^2*a11^2*u00*u01*u10*u11 + a01*a10*a11^2*u00*u01*u10*u11 - a00*a11^3*u00*u01*u10*u11 + a00*a01^2*a10*u01*u10^2*u11 - a00^2*a01*a11*u01*u10^2*u11 - a01^2*a10*a11*u01*u10^2*u11 + a00*a01*a11^2*u01*u10^2*u11 - a01^2*a10^2*u00^2*u11^2 + a00*a01*a10*a11*u00^2*u11^2 + a00*a01^2*a10*u00*u10*u11^2 - a00^2*a01*a11*u00*u10*u11^2 - a01^2*a10*a11*u00*u10*u11^2 + a00*a01*a11^2*u00*u10*u11^2 + a01^3*a10*u10^2*u11^2 - a00*a01^2*a11*u10^2*u11^2
In general you're advised to use polynomial rings when dealing with polynomial fractions. As to the bug, Pynac switched to Singular for GCD and some interface bugs turned up around Sage-7.5 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 https://groups.google.com/group/sage-devel. For more options, visit https://groups.google.com/d/optout.
