#5921: [with patch, needs work] factoring integer polynomials does not factor
the
content
---------------------+------------------------------------------------------
Reporter: cremona | Owner: tbd
Type: defect | Status: new
Priority: major | Milestone: sage-4.0
Component: algebra | Keywords:
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Comment(by AlexGhitza):
Replying to [comment:10 mabshoff]:
> These two patches break
> {{{
> sage -t -long devel/sage/sage/modular/overconvergent/genus0.py
> }}}
>
This is due to a bug in p-adics, more precisely in the content method for
p-adic polynomials:
{{{
sage: P.<x> = ZZ[]
sage: f = x + 2
sage: f.content()
1
sage: fp = f.change_ring(pAdicField(2, 10))
sage: fp
(1 + O(2^10))*x + (2 + O(2^11))
sage: fp.content()
0
}}}
I have checked and the monster p-adic patch bomb at #5778 doesn't help
with this. I'll see what we can do.
--
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/5921#comment:11>
Sage <http://sagemath.org/>
Sage - Open Source Mathematical Software: Building the Car Instead of
Reinventing the Wheel
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