#11587: update Cremona's tables for Sage
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Reporter: was | Owner: cremona
Type: enhancement | Status: closed
Priority: major | Milestone: sage-4.8
Component: elliptic curves | Resolution: fixed
Keywords: elliptic curves ellcurve database | Work_issues:
Upstream: N/A | Reviewer: John
Cremona, Tom Boothby
Author: R. Andrew Ohana | Merged:
sage-4.8.alpha0
Dependencies: #11642 |
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Comment(by cremona):
Doing a full test after installing the new optional database (onto
4.8.alpha4) I find one doctest failure in
devel/sage/doc/en/bordeaux_2008/elliptic_curves.rst:
{{{
sage: E = EllipticCurve([1,2,5,7,17])
sage: E.conductor() # not in the Tables
154907
sage: E.gens() # a few seconds
[(1 : 3 : 1), (67/4 : 507/8 : 1)]
}}}
since that curve is now in the database and the listed generators are
different. I suggest instead
{{{
sage: E = EllipticCurve([0,0,1,-19,60])
sage: E.conductor() # not in the Tables
1129211
sage: E.gens() # a few seconds
[(-5 : 5 : 1), (-4 : 8 : 1), (-15/4 : 67/8 : 1), (-3 : 9 : 1)]
}}}
Should the ticket be reopened -- this is not an issue in testing without
the optional db installed?
--
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/11587#comment:65>
Sage <http://www.sagemath.org>
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