#9254: A collection of little improvements to BSD.py
-------------------------------+--------------------------------------------
Reporter: rlm | Owner: cremona
Type: defect | Status: new
Priority: major | Milestone:
Component: elliptic curves | Keywords:
Author: Robert Miller | Upstream: N/A
Reviewer: | Merged:
Work_issues: |
-------------------------------+--------------------------------------------
These are some of the things I did while working on my thesis.
Depends on #9253, which depends on #9247. Still needs work, since there is
now the following error, which is very mysterious to me:
{{{
sage -t "devel/sage-main/sage/schemes/elliptic_curves/BSD.py"
**********************************************************************
File "/Users/rlmill/sage-4.4.4.alpha0/devel/sage-
main/sage/schemes/elliptic_curves/BSD.py", line 371:
sage: E.prove_BSD(verbosity=2)
Exception raised:
Traceback (most recent call last):
File "/Users/rlmill/sage-4.4.4.alpha0/local/bin/ncadoctest.py", line
1231, in run_one_test
self.run_one_example(test, example, filename, compileflags)
File "/Users/rlmill/sage-4.4.4.alpha0/local/bin/sagedoctest.py",
line 38, in run_one_example
OrigDocTestRunner.run_one_example(self, test, example, filename,
compileflags)
File "/Users/rlmill/sage-4.4.4.alpha0/local/bin/ncadoctest.py", line
1172, in run_one_example
compileflags, 1) in test.globs
File "<doctest __main__.example_6[21]>", line 1, in <module>
E.prove_BSD(verbosity=Integer(2))###line 371:
sage: E.prove_BSD(verbosity=2)
File "/Users/rlmill/sage-4.4.4.alpha0/local/lib/python/site-
packages/sage/schemes/elliptic_curves/BSD.py", line 538, in prove_BSD
I = BSD.curve.heegner_index(D)
File "/Users/rlmill/sage-4.4.4.alpha0/local/lib/python/site-
packages/sage/schemes/elliptic_curves/heegner.py", line 6464, in
heegner_index
reg = F.regulator(descent_second_limit=descent_second_limit,
verbose=verbose_mwrank)
File "/Users/rlmill/sage-4.4.4.alpha0/local/lib/python/site-
packages/sage/schemes/elliptic_curves/ell_rational_field.py", line 2095,
in regulator
G = self.gens(proof=proof, use_database=use_database,
descent_second_limit=descent_second_limit, verbose=verbose)
File "/Users/rlmill/sage-4.4.4.alpha0/local/lib/python/site-
packages/sage/schemes/elliptic_curves/ell_rational_field.py", line 1934,
in gens
G = C.gens()
File "/Users/rlmill/sage-4.4.4.alpha0/local/lib/python/site-
packages/sage/libs/mwrank/interface.py", line 595, in gens
return
eval(preparse(self.__two_descent_data().getbasis().replace(":",",")))
RuntimeError
**********************************************************************
}}}
--
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/9254>
Sage <http://www.sagemath.org>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica,
and MATLAB
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