#1956: implement multivariate power series arithmetic
-----------------------------------+----------------------------------------
Reporter: was | Owner: malb
Type: enhancement | Status: needs_work
Priority: major | Milestone: sage-4.6
Component: commutative algebra | Keywords: multivariate power series
Author: Niles Johnson | Upstream: N/A
Reviewer: | Merged:
Work_issues: |
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Old description:
> Multivariate power series arithmetic has been requested a *lot*.
>
> == Apply: ==
>
> [attachment: trac_1956_multi_power_series_new.patch]
New description:
Multivariate power series arithmetic has been requested a *lot*.
== Apply: ==
1. patch from #9443
1. [attachment:trac_1956_multi_power_series_new.patch]
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Comment(by niles):
sorry; I should have mentioned the dependency in the description (fixed
now).
While trying to write a detailed email explaining how I can't understand
the coercion model, I realized that the problem with `_l_action_` not
being called is probably that the `Completion` functor didn't know how to
complete multivariate polynomial rings to multivariate power series rings
. . . so that's fixed now, and it does fix the `_l_action_` problem :)
After I check for new doctest failures, I'll upload the new patch.
--
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/1956#comment:26>
Sage <http://www.sagemath.org>
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