[sage-support] Re: Can't compute modular degree for elliptic curves in 4.5.2

2010-10-20 Thread gagan
Really sorry, I didn't give details. It was a 64 bit Mac running sage version 4.5.2. But now I am running 4.5.3 and it seems to be working fine. Gagan On Oct 20, 6:02 pm, William Stein wrote: > On Sun, Oct 17, 2010 at 5:50 PM, gagan wrote: > > sage: E=EllipticCurve('11a1'); > > sage: E.modular_d

[sage-support] Re: Can't compute modular degree for elliptic curves in 4.5.2

2010-10-20 Thread John Cremona
Quite apart from any problems there may be with the sympow implementation, there is another bug here: for curves in the database, the modular degree is known from the database, as you can see here: sage: E = EllipticCurve('11a1') sage: E._EllipticCurve_rational_field__modular_degree 1 But for so