#16508: Add Commutative graded differential algebras.
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       Reporter:  mmarco             |        Owner:
           Type:  enhancement        |       Status:  needs_review
       Priority:  major              |    Milestone:  sage-6.4
      Component:  algebra            |   Resolution:
       Keywords:  sd58, sd59,        |    Merged in:
  algebras, nonconmutative, graded   |    Reviewers:  Travis Scrimshaw
        Authors:  Miguel Marco,      |  Work issues:
  John Palmieri                      |       Commit:
Report Upstream:  N/A                |  d732dbe00bfb57cf14563a973ce2d06105b56d6e
         Branch:                     |     Stopgaps:
  public/algebras/cdga-16508         |
   Dependencies:  #17224             |
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Comment (by jhpalmieri):

 I've made a few changes: maybe most crucially but also most trivially,
 there was a missing `EXAMPLES::` that was causing docbuilding to fail.

 Then I renamed some classes. The one I feel most strongly about is
 `DifferentialCGA`: to me, this sounds like a "differential commutative
 graded algebra", not a "differential defined on a commutative graded
 algebra". So I just renamed it to `Differential`. I changed `CDGAlgebra`
 to `DifferentialGCAlgebra`. (I toyed with `GCAlgebraWithDifferential`, but
 didn't like it as much. I don't care that much, since these class names
 won't be that visible to most users.)

 I also added a bit to the docstrings for the two `CDGAlgebra` methods.

--
Ticket URL: <http://trac.sagemath.org/ticket/16508#comment:49>
Sage <http://www.sagemath.org>
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