#15673: major improvements to lazy power series
-------------------------------------+-------------------------------------
Reporter: mhansen | Owner:
Type: enhancement | Status: needs_work
Priority: major | Milestone: sage-6.4
Component: combinatorics | Resolution:
Keywords: LazyPowerSeries,, | Merged in:
days57 | Reviewers: Ralf Stephan,
Authors: Mike Hansen | Matthieu Dien
Report Upstream: N/A | Work issues:
Branch: u/mantepse/15673 | Commit:
Dependencies: | aa8fd83522eaeb583da0caa5c6628ddd1ed36b04
| Stopgaps:
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Comment (by elixyre):
Hello,
Thanks to update and improve this code! ;-)
I have a stupid question: the ''lazy'' thing is a trick to compute
efficiently the coefficient of the product of series or some other
operations on series, right?
About the code, why does `LazyPowerSeries` only inherit of
`AlgebraElement` and not of `Stream`? It seems not so python/object to
define a lazy series as a ''capsule'' of a stream so I want to understand.
All I read in the code look like this
{{{
class LazyPowerSeries(...):
....
def get_order(self):
return self._stream.get_order()
....
}}}
so it seems better to inherit of `Stream`.
Jean-Baptiste Priez
--
Ticket URL: <http://trac.sagemath.org/ticket/15673#comment:47>
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