This looks pretty nasty: sage: Fx.<b>=GF(2^(4*5)) sage: Ex=EllipticCurve(Fx,[0,0,1,1,1]) sage: Ex.defining_polynomial() x^3 + y^2*z + 0*x*z^2 + 0*y*z^2 + 0*z^3
(note the coefficients of zero). I found this while reviewing #5765 but the above is in a vanilla 3.4.2.alpha0, and it is wrong; though this was only revealed by #5765 which changed the method for verifying that a point lies on a curve from something which uses the a-invariants directly to a general scheme function which uses the defining polynomial. This causes elliptic_curves/ell_point.py to fail. So the bug might have been around for a while. John --~--~---------~--~----~------------~-------~--~----~ To post to this group, send email to sage-devel@googlegroups.com To unsubscribe from this group, send email to sage-devel-unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-devel URLs: http://www.sagemath.org -~----------~----~----~----~------~----~------~--~---
