#9247: A collection of little improvements to elliptic curves
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   Reporter:  rlm                          |       Owner:  cremona   
       Type:  enhancement                  |      Status:  needs_work
   Priority:  major                        |   Milestone:  sage-4.5  
  Component:  elliptic curves              |    Keywords:            
     Author:  Robert Miller, John Cremona  |    Upstream:  N/A       
   Reviewer:  John Cremona, Robert Miller  |      Merged:            
Work_issues:                               |  
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Comment(by cremona):

 Replying to [comment:11 wuthrich]:
 > I would suggst to remove the modification to padic_lseries.py. In the
 future we should use eclib by default, but currently eclib does not
 provide negative modular symbols and they are needed in some cases (e.g.
 twisting by a negative D).

 Yes it does now!   Review my patch and you can have them!  I implemented
 this while at MSRI.  See #9476

 A careful user can currently choose to use eclib, if he knows  that he
 will not need negative modular symbols.

-- 
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/9247#comment:12>
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