#9343: upgrade pari to version 2.4.3
---------------------------+------------------------------------------------
Reporter: was | Owner: tbd
Type: enhancement | Status: new
Priority: major | Milestone: sage-4.5
Component: packages | Keywords:
Author: | Upstream: N/A
Reviewer: | Merged:
Work_issues: |
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Comment(by was):
Polynomial factorization over number fields is broken:
{{{
? nffactor(nfinit(y^2-5), x^5 - x^4 - 7*x^3 + x^2 + 7*x - 3)
%6 =
[x - 3 1]
[x + Mod(-1/2*y + 1/2, y^2 - 5) 4]
[x + Mod(1/2*y + 1/2, y^2 - 5) 0]
? factor
factor factorcantor factorial factormod factorpadic
factorback factorff factorint factornf
? factornf(x^5 - x^4 - 7*x^3 + x^2 + 7*x - 3, y^2-5)
%7 =
[x - 3 1]
[x + Mod(-1/2*y + 1/2, y^2 - 5) 0]
[x + Mod(1/2*y + 1/2, y^2 - 5) 4]
}}}
Here's what used to happen:
{{{
? nffactor(nfinit(y^2-5), x^5 - x^4 - 7*x^3 + x^2 + 7*x - 3)
%7 =
[x - 3 1]
[x + Mod(-1/2*y + 1/2, y^2 - 5) 2]
[x + Mod(1/2*y + 1/2, y^2 - 5) 2]
}}}
--
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/9343#comment:13>
Sage <http://www.sagemath.org>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica,
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