#20835: Systematic encoder for linear codes
-------------------------------------+-------------------------------------
       Reporter:  dlucas             |        Owner:
           Type:  enhancement        |       Status:  needs_review
       Priority:  major              |    Milestone:  sage-7.3
      Component:  coding theory      |   Resolution:
       Keywords:                     |    Merged in:
        Authors:  David Lucas        |    Reviewers:
Report Upstream:  N/A                |  Work issues:
         Branch:                     |       Commit:
  u/dlucas/systematic_encoder        |  7248f402a963e6963eeea842e496050faa832c51
   Dependencies:                     |     Stopgaps:
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Comment (by dlucas):

 I made some changes to this ticket:

 - I simplified the output message of `_repr_` and `_latex_`. I also
 noticed other encoders in `linear_code.py` were outputting `Encoder blah
 for the Code blah`, while Sage convention is to write `Encoder blah for
 Code blah`. I fixed this as well.

 - I renamed `rank_profile_column_indices` into `systematic_positions`, and
 utterly simplified its implementation.

 - I also added details on the encoding, and what we call "systematic form"
 to the class docstring.

 This is still open for review.

--
Ticket URL: <http://trac.sagemath.org/ticket/20835#comment:4>
Sage <http://www.sagemath.org>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica, 
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