Re: [sage-devel] the command: "E = EllipticCurve('14a1') K. = E.division_field(5); K" never finishes

2018-12-01 Thread John Cremona
On Sat, 1 Dec 2018 at 08:42, Steven Craighead wrote: > E = EllipticCurve('14a1') > K. = E.division_field(p); K for p = 2 and 3 finishes quickly. When I > use p = 5 or p = 7, the command never finishes. > The docstring warns (do E.division_field? to see it) that "This takes a very long time when

[sage-devel] the command: "E = EllipticCurve('14a1') K. = E.division_field(5); K" never finishes

2018-12-01 Thread Steven Craighead
E = EllipticCurve('14a1') K. = E.division_field(p); K for p = 2 and 3 finishes quickly. When I use p = 5 or p = 7, the command never finishes. I use Sagemath 8.4 on a linux mint 19. This is a toshiba AMD Turion II Dual Core Process M500 with 4GB ram. This is a Pentium 64-bit. -- You receiv