#21034: Upgrade to pynac-0.6.8
-------------------------------------+-------------------------------------
Reporter: rws | Owner:
Type: enhancement | Status: needs_review
Priority: major | Milestone: sage-7.3
Component: packages: | Resolution:
standard |
Keywords: | Merged in:
Authors: Ralf Stephan | Reviewers: Paul Masson
Report Upstream: N/A | Work issues:
Branch: | Commit:
u/rws/upgrade_to_pynac_0_6_8 | 0eb21dba0085b87817298a1b7042c75ad2c6b2ae
Dependencies: | Stopgaps:
-------------------------------------+-------------------------------------
Old description:
> The new Pynac version does:
> * fix polylog evalf (Sage #18368)
> * better beta_evalf() (Sage #15196)
> * fix bug in cancelling of fractions (Sage #19775, #20843)
> * fix some positive/nonnegative bugs
> * do not ignore `_print_latex_()` in `GinacFunction`s (#20888)
> * provide Pynac version of Maxima's `ex.coefficients()` (Sage #20455)
> * provide Pynac version of Maxima's `ex.combine()`
> * some fixes ported from GiNaC
>
> https://github.com/pynac/pynac/releases/download/pynac-0.6.8/pynac-0.6.8.tar.bz2
New description:
The new Pynac version does:
* fix polylog evalf (Sage #18368)
* better beta_evalf() (Sage #15196)
* fix bug in cancelling of fractions (Sage #19775, #20843)
* fix some positive/nonnegative bugs
* do not ignore `_print_latex_()` in `GinacFunction`s (#20888)
* provide Pynac version of Maxima's `ex.coefficients()`
* provide Pynac version of Maxima's `ex.combine()`
* some fixes ported from GiNaC
https://github.com/pynac/pynac/releases/download/pynac-0.6.8/pynac-0.6.8.tar.bz2
--
Comment (by rws):
1) Yes, only part of #18368 is fixed, 2) the infinity problem has to be
addressed in Sage and it's the same problem as #19439 so it should go in
that ticket, 3) Yes, and this is only one example where Pynac code
overrides Sage code (I don't think this is a problem in principle), 4)
Good Question, in the process of implementation I had to revise my
opinion, let's discuss that in #20455.
--
Ticket URL: <https://trac.sagemath.org/ticket/21034#comment:19>
Sage <http://www.sagemath.org>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica,
and MATLAB
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