#9372: implement regulator function for elliptic curves over number fields
-------------------------------+--------------------------------------------
Reporter: cremona | Owner: cremona
Type: enhancement | Status: needs_work
Priority: major | Milestone: sage-4.5
Component: elliptic curves | Keywords:
Author: John Cremona | Upstream: N/A
Reviewer: | Merged:
Work_issues: |
-------------------------------+--------------------------------------------
Changes (by davidloeffler):
* status: needs_review => needs_work
Comment:
I'm getting a couple of doctest failures -- something is off by a sign in
the {{{height_pairing_matrix}}} code:
{{{
sage -t -long ell_number_field.py
**********************************************************************
File "/storage/masiao/sage-4.4.4/devel/sage-
reviewing/sage/schemes/elliptic_curves/ell_number_field.py", line 308:
sage: E.height_pairing_matrix([P,Q])
Expected:
[ 0.686667083305587 -0.268478098806726]
[-0.268478098806726 0.327000773651605]
Got:
[0.686667083305587 0.268478098806726]
[0.268478098806726 0.327000773651605]
**********************************************************************
File "/storage/masiao/sage-4.4.4/devel/sage-
reviewing/sage/schemes/elliptic_curves/ell_number_field.py", line 317:
sage: EK.height_pairing_matrix([EK(P),EK(Q)])
Expected:
[ 0.686667083305586 -0.268478098806726]
[-0.268478098806726 0.327000773651605]
Got:
[0.686667083305586 0.268478098806726]
[0.268478098806726 0.327000773651605]
**********************************************************************
1 items had failures:
2 of 23 in __main__.example_4
***Test Failed*** 2 failures.
}}}
Also, a very tiny quibble: the second argument "precision" to
{{{height_pairing_matrix}}} is missing its bullet point in the docstring.
--
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/9372#comment:3>
Sage <http://www.sagemath.org>
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