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
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