#15698: univariate polynomial ring fraction expansion to power series
-------------------------------------------------+------------------------
Reporter: rws | Owner: rws
Type: enhancement | Status: new
Priority: major | Milestone: sage-6.1
Component: algebra | Resolution:
Keywords: series expansion fraction ogf | Merged in:
Authors: | Reviewers:
Report Upstream: N/A | Work issues:
Branch: | Commit:
Dependencies: | Stopgaps:
-------------------------------------------------+------------------------
Description changed by rws:
Old description:
> The following behaviour is not implemented, example:
> {{{
> sage: R.<t> = QQ[]; A=1/(1-t)
> sage: A.expand(5)
> 1+t+t^2+t^3+t^4+t^5+O(t^6)
> sage: A+O(t^6)
> 1+t+t^2+t^3+t^4+t^5+O(t^6)
> }}}
> Result type being a power series. The pari function Ser() implements the
> same behaviour. Note: I would like to implement this.
New description:
The following behaviour is not implemented, example:
{{{
sage: R.<t> = QQ[]; A=1/(1-t)
sage: A.expand(5)
1+t+t^2+t^3+t^4+t^5+O(t^6)
sage: A+O(t^6)
1+t+t^2+t^3+t^4+t^5+O(t^6)
}}}
Add a parameter to specify the respective series variable (for derivation)
then multivariate polynomial fractions can be handled. Result type being a
power series. The pari function Ser() implements the same behaviour. Note:
I would like to implement this.
--
--
Ticket URL: <http://trac.sagemath.org/ticket/15698#comment:1>
Sage <http://www.sagemath.org>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica,
and MATLAB
--
You received this message because you are subscribed to the Google Groups
"sage-trac" group.
To unsubscribe from this group and stop receiving emails from it, send an email
to [email protected].
To post to this group, send email to [email protected].
Visit this group at http://groups.google.com/group/sage-trac.
For more options, visit https://groups.google.com/groups/opt_out.
