#14189: Extend modular degree and congruence modulus of elliptic curves over QQ 
to
arbitrary level.
------------------------------------------------------+---------------------
       Reporter:  spice                               |         Owner:  spice   
  
           Type:  enhancement                         |        Status:  
needs_work
       Priority:  major                               |     Milestone:  
sage-5.8  
      Component:  elliptic curves                     |    Resolution:          
  
       Keywords:  modular degree, congruence modulus  |   Work issues:          
  
Report Upstream:  N/A                                 |     Reviewers:  Aly 
Deines
        Authors:  Simon Spicer                        |     Merged in:          
  
   Dependencies:                                      |      Stopgaps:          
  
------------------------------------------------------+---------------------
Changes (by jdemeyer):

  * status:  positive_review => needs_work


Comment:

 There is an obvious doctest failure:
 {{{
 **********************************************************************
 File "/release/merger/sage-5.8.beta3/devel/sage-
 main/sage/schemes/elliptic_curves/ell_rational_field.py", line 3412:
     sage: E.congruence_number()  # long time (4s on sage.math, 2011)
 Expected:
     176
     # Higher level cases
 Got:
     176
 **********************************************************************
 }}}

-- 
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/14189#comment:15>
Sage <http://www.sagemath.org>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica, 
and MATLAB

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