#10268: adding GiNaC method to simplify_rational
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Reporter: bgoodri | Owner: burcin
Type: enhancement | Status: needs_work
Priority: minor | Milestone: sage-4.6.2
Component: symbolics | Keywords:
Author: Ben Goodrich | Upstream: N/A
Reviewer: | Merged:
Work_issues: |
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Comment(by burcin):
Replying to [comment:6 bgoodri]:
> Replying to [comment:5 burcin]: cc'ing William for clarification
>
> > I haven't looked into the functionality in `normal.cpp` much, but one
of William's goals was to make it call Singular (or the Factory library)
to factor multivariate polynomials instead of the code in ginac. This
library generally performs much better and it is actively being developed.
>
> Do you really want to do full factorization in `simplify_rational()`. I
think neither Maxima nor GiNaC do that, only square-free factorization and
gcd cancellation. We could add an option to do full factorization of the
numerator and denominator before returning. If so, would it make more
sense to first backport the functionality in factor.cpp from GiNaC 1.5.x
to the pynac fork than to code a pynac-libSingular link?
Sorry for the confusion. I meant to say gcd.
Now that there is a separate ticket for the bug in the pynac gcd, #10284,
I will post my response to the other questions there.
--
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/10268#comment:10>
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