#12555: Reimplement elements of Zp and Qp using templates
-------------------------------------+-------------------------------------
       Reporter:  roed               |        Owner:  roed
           Type:  enhancement        |       Status:  needs_work
       Priority:  major              |    Milestone:  sage-6.1
      Component:  padics             |   Resolution:
       Keywords:  sd53 padics        |    Merged in:
  templates                          |    Reviewers:  William Stein,
        Authors:  David Roe, Julian  |  Soroosh Yazdani, Julian Rueth,
  Rueth                              |  Travis Scrimshaw
Report Upstream:  N/A                |  Work issues:
         Branch:                     |       Commit:
  public/padics/templates-12555      |  5f0081329eb8dd9f843cf66c9f73a99d045ff53a
   Dependencies:  #12625, #13299,    |     Stopgaps:
  #14287, #12575, #6223              |
-------------------------------------+-------------------------------------

Comment (by jpflori):

 Apparently its when testing
 {{{
 y1 == -y2 - a1*x2 - a3
 }}}
 in ell_point.py.
 The following reproduces it:
 {{{
 sage: y1 = 10*11^2 + 3*11^3 + O(11^40)
 sage: y2 = 11^2 + 7*11^3 + 10*11^4 + 10*11^5 + 10*11^6 + 10*11^7 + 10*11^8
 + 10*11^9 + 10*11^10 + 10*11^11 + 10*11^12 + 10*11^13 + 10*11^14 +
 10*11^15 + 10*11^16 + 10*11^17 + 10*11^18 + 10*11^19 + 10*11^20 + 10*11^21
 + 10*11^22 + 10*11^23 + 10*11^24 + 10*11^25 + 10*11^26 + 10*11^27 +
 10*11^28 + 10*11^29 + 10*11^30 + 10*11^31 + 10*11^32 + 10*11^33 + 10*11^34
 + 10*11^35 + 10*11^36 + 10*11^37 + 10*11^38 + 10*11^39 + O(11^40)
 sage: y1 == y2
 ---------------------------------------------------------------------------
 SystemError                               Traceback (most recent call
 last)
 <ipython-input-4-2a7abc374794> in <module>()
 ----> 1 y1 == y2

 SystemError: error return without exception set
 sage:
 }}}

--
Ticket URL: <http://trac.sagemath.org/ticket/12555#comment:75>
Sage <http://www.sagemath.org>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica, 
and MATLAB

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