#15312: fix integer overflow (?) in conversion of powersums to Schur functions
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Reporter: zabrocki | Owner:
Type: defect | Status: new
Priority: critical | Milestone: sage-5.13
Component: combinatorics | Resolution:
Keywords: symmetric functions, | Merged in:
symmetrica, memleak | Reviewers:
Authors: | Work issues:
Report Upstream: N/A | Commit:
Branch: | Stopgaps:
Dependencies: |
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Comment (by zabrocki):
I want to get this bug resolved too. The bug in #13413 sent me into a bit
of panic because I realized that very few calculations using the symmetric
function package weren't questionable (sorry for the double negative). I
now have slightly more confidence in symmetric function calculations, but
only a little more than before.
I started reading Matheiu's comment carefully and he states : "the problem
appears at size 47". However I ran his program on my computer (OS 10.8.5
with 2.6 GHz Intel Core i7 processor) and on a mac in my office with
copies of sage that had #13413 applied and not. The error seemed to
appear somewhere between degree 47 and 51 depending on some non-
deterministic effect. Mostly it was starting at 48.
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Ticket URL: <http://trac.sagemath.org/ticket/15312#comment:3>
Sage <http://www.sagemath.org>
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