On Oct 3, 2009, at 4:08 PM, rjf wrote:
> Then would factoring 2*x-2 also reveal the bug? Or maybe factoring
> 2 ?
Nope.
> It seems to me that for Pari to remove and then ignore the content
> (in Z?) is a bug.
Yep, I consider that strange too (though it does solve the "more
interesting" p
Then would factoring 2*x-2 also reveal the bug? Or maybe factoring
2 ?
It seems to me that for Pari to remove and then ignore the content (in
Z?) is a bug.
It would make some sense to optionally not factor such a content
unless you want to
also do integer factorization.
On Oct 3, 11:51
On Oct 2, 2009, at 9:30 PM, rjf wrote:
> hey, factoring-testing guys..
> If you make up factoring problems this way, you are probably not doing
> much testing of the real factoring algorithms.
Actually, given this bug has been in Sage for so long, the real issue
is that for several years no on
On Fri, Oct 2, 2009 at 9:30 PM, rjf wrote:
>
> hey, factoring-testing guys..
> If you make up factoring problems this way, you are probably not doing
> much testing of the real factoring algorithms. Repeated factors like
I for one am very grateful for this bug report. Andy is doing a superb jo
hey, factoring-testing guys..
If you make up factoring problems this way, you are probably not doing
much testing of the real factoring algorithms. Repeated factors like
this of different degree are detected by so-called square-free
factorization.
The time to factor F in Maxima is, to the resoluti
By the way, last October I made a patch for NTL which makes NTL's
factoring significantly faster than even MAGMA's in some cases. I
think that the degree flags < 30 and > 300 for NTL's factoring
(provided my patch went in) needs to be revisited anyway.
On Oct 1, 8:37 am, Robert Bradshaw
wrote:
On Sep 30, 2009, at 8:25 PM, William Stein wrote:
>
> On Wed, Sep 30, 2009 at 7:13 PM, Marshall Hampton
> wrote:
>>
>> Wow, that's quite disturbing. Did you make a trac ticket for this?
>>
>
> I've made this:
>
> http://trac.sagemath.org/sage_trac/ticket/7088
>
> and made it a 4.1.2 blocker,
On Wed, Sep 30, 2009 at 7:13 PM, Marshall Hampton wrote:
>
> Wow, that's quite disturbing. Did you make a trac ticket for this?
>
I've made this:
http://trac.sagemath.org/sage_trac/ticket/7088
and made it a 4.1.2 blocker, since it a serious bug. The problem is
in the _factor_pari method in S
Wow, that's quite disturbing. Did you make a trac ticket for this?
-Marshall Hampton
On Sep 30, 7:32 pm, AndyNovo wrote:
> Hi all,
>
> Found this simple bug in a simple Z[x] factoring example.
>
> R.=PolynomialRing(ZZ)
> f = 12*x^10 + x^9 + 432*x^3 + 9011
> g = 13*x^11 + 89*x^3 + 1
> F = f^2 *
