#11321: Make lcalc compatible with the new PARI
--------------------------------------------+-------------------------------
Reporter: jdemeyer | Owner: jdemeyer
Type: defect | Status: positive_review
Priority: major | Milestone: sage-4.7.3
Component: packages | Keywords: lcalc spkg
Work_issues: | Upstream: Reported
upstream. Developers acknowledge bug.
Reviewer: Volker Braun, Leif Leonhardy | Author: Jeroen Demeyer,
Leif Leonhardy
Merged: | Dependencies: #11130
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Changes (by was):
* status: needs_review => positive_review
Comment:
I read through the diff to the spkg, and everything looked reasonable to
me. I applied the new pari stuff (#11330), then build this spkg, and it
worked fine, and passed the full test suite (for Sage) after applying it.
I tried one simple example "by hand" that actually *uses* lcalc, and was
not pleased by what happened:
{{{
sage: E = EllipticCurve('37a')
sage: L = E.lseries()
sage: L.zeros(10)
*** Warning: new stack size = 1030944 (0.983 Mbytes).
[0.000000000, 5.00317001, 6.87039122, 8.01433081, 9.93309835, 10.7751382,
11.7573247, 12.9583864, 15.6038579, 16.1920174]
sage: L.zeros(10)
*** Warning: new stack size = 1030944 (0.983 Mbytes).
[0.000000000, 5.00317001, 6.87039122, 8.01433081, 9.93309835, 10.7751382,
11.7573247, 12.9583864, 15.6038579, 16.1920174]
}}}
Basically, every time you use lcalc to do anything with elliptic curve
L-series, you get some mysterious warning (of course, really output from
PARI). However, the problem has been in released Sage for a long time,
so it should be a separate ticket. It was in sage-4.7. That's now
#11985.
So I say: positive review for this ticket. Great work guys for cleaning
up all kinds of little issues. This is not an easy spkg, to put it
mildly.
--
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/11321#comment:48>
Sage <http://www.sagemath.org>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica,
and MATLAB
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