#128: possible clash for EllipticCurve(j-invariant) signature
-----------------------------------+----------------------------------------
Reporter: nbruin | Owner: was
Type: enhancement | Status: positive_review
Priority: minor | Milestone:
sage-duplicate/invalid/wontfix
Component: elliptic curves | Resolution:
Keywords: | Work issues:
Report Upstream: N/A | Reviewers: Paul Zimmermann, Nils
Bruin
Authors: John Cremona | Merged in:
Dependencies: | Stopgaps:
-----------------------------------+----------------------------------------
Changes (by {'newvalue': u'John Cremona', 'oldvalue': ''}):
* status: needs_review => positive_review
* author: => John Cremona
Comment:
John, with Sage 5.6 we now get an error:
{{{
----------------------------------------------------------------------
| Sage Version 5.6, Release Date: 2013-01-21 |
| Type "notebook()" for the browser-based notebook interface. |
| Type "help()" for help. |
----------------------------------------------------------------------
sage: R.<x>=QQ[]
sage: EllipticCurve(x^3+1)
---------------------------------------------------------------------------
TypeError Traceback (most recent call
last)
/users/caramel/zimmerma/<ipython console> in <module>()
/localdisk/tmp/sage-5.6/local/lib/python2.7/site-
packages/sage/schemes/elliptic_curves/constructor.pyc in EllipticCurve(x,
y, j, minimal_twist)
351
352 if rings.is_RingElement(x) and y is None:
--> 353 raise TypeError, "invalid input to EllipticCurve
constructor"
354
355 if not isinstance(x, (list, tuple)):
TypeError: invalid input to EllipticCurve constructor
}}}
thus the original problem in the ticket description is solved. I thus
propose to close that ticket, while leaving you as author.
Paul
--
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/128#comment:21>
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