#15673: major improvements to lazy power series
-------------------------------------+-------------------------------------
       Reporter:  mhansen            |        Owner:
           Type:  enhancement        |       Status:  new
       Priority:  major              |    Milestone:  sage-6.2
      Component:  combinatorics      |   Resolution:
       Keywords:  LazyPowerSeries    |    Merged in:
        Authors:  Mike Hansen        |    Reviewers:  Ralf Stephan
Report Upstream:  N/A                |  Work issues:
         Branch:                     |       Commit:
  u/mhansen/species_stream           |  927ff83b9f363f2d15db4b638a9439b041dd6479
   Dependencies:                     |     Stopgaps:
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Comment (by vdelecroix):

 Replying to [comment:18 rws]:
 > The branch does not merge cleanly into 6.2.beta2 but it's a one line
 change. Tests within species are good. Docs build fine.
 >
 > I also think that stream is another word for infinite sequence, and so a
 finite stream implementation already exists in structure.sequence, which
 is also fast (there are however problems in that Sequence doesn't have a
 parent, see #15852).

 Note that there is also `sage.misc.lazy_list` which is a cython
 implementation of a lazy list and there are several interesting
 implementations of lazy words in `sage.combinat.words`...

--
Ticket URL: <http://trac.sagemath.org/ticket/15673#comment:19>
Sage <http://www.sagemath.org>
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