On Fri, 17 Aug 2007, Joseph L Wetherell wrote:
>
> Robert Bradshaw wrote:
>>
>> On Jul 30, 2007, at 12:26 PM, didier deshommes wrote:
>>
>>> 2007/7/30, Carl Witty <[EMAIL PROTECTED]>:
It seems pretty strange to me, mostly because you lose too much
information by eliding zeroes. As f
Robert Bradshaw wrote:
>
> On Jul 30, 2007, at 12:26 PM, didier deshommes wrote:
>
>> 2007/7/30, Carl Witty <[EMAIL PROTECTED]>:
>>> It seems pretty strange to me, mostly because you lose too much
>>> information by eliding zeroes. As far as I can tell, given
>>> MPolynomialRing(QQ,2,order='lex
On 8/1/07, Martin Albrecht <[EMAIL PROTECTED]> wrote:
> > Too late, I just did it, since I needed it for something else I'm
> > doing (related to power series over polynomial rings). Martin,
> > please have a look, since you might be able to improve the patch.
>
> I spot two things:
> * The metho
> Too late, I just did it, since I needed it for something else I'm
> doing (related to power series over polynomial rings). Martin,
> please have a look, since you might be able to improve the patch.
I spot two things:
* The method does not preserve the term ordering (which might be tricky anyh
"William Stein" <[EMAIL PROTECTED]> writes:
> I also added f.polynomial(...) for f a multivariate polynomial, which
> sort of fits into the thread of this discussion. This is
> a very useful function for certain applications -- it allows you to
> view a multivariate polynomial as a single variab
On Jul 30, 2007, at 12:26 PM, didier deshommes wrote:
>
> 2007/7/30, Carl Witty <[EMAIL PROTECTED]>:
>> It seems pretty strange to me, mostly because you lose too much
>> information by eliding zeroes. As far as I can tell, given
>> MPolynomialRing(QQ,2,order='lex'), all of the following polyno
On 7/31/07, Martin Albrecht <[EMAIL PROTECTED]> wrote:
>
> > Is this a bug, or am I not using this correctly?
>
> I'll add the option to construct an MPolynomial_libsingular from a PolyDict.
Too late, I just did it, since I needed it for something else I'm
doing (related to power series over polyn
> Is this a bug, or am I not using this correctly?
I'll add the option to construct an MPolynomial_libsingular from a PolyDict.
Martin
--
name: Martin Albrecht
_pgp: http://pgp.mit.edu:11371/pks/lookup?op=get&search=0x8EF0DC99
_www: http://www.informatik.uni-bremen.de/~malb
_jab: [EMAIL PROTE
2007/7/30, Martin Albrecht <[EMAIL PROTECTED]>:
>
> Hi Didier,
>
> I hope you don't mind that I have some remarks about your patches
Not at all! I am just poking my way through the multivariate code and
any input from someone more knowledgeable than me would be greatly
appreciated.
>
> The R.ran
On Jul 30, 12:26 pm, "didier deshommes" <[EMAIL PROTECTED]> wrote:
> 2007/7/30, Carl Witty <[EMAIL PROTECTED]>:
>
> > It seems pretty strange to me, mostly because you lose too much
> > information by eliding zeroes. As far as I can tell, given
> > MPolynomialRing(QQ,2,order='lex'), all of the fo
2007/7/30, Carl Witty <[EMAIL PROTECTED]>:
> It seems pretty strange to me, mostly because you lose too much
> information by eliding zeroes. As far as I can tell, given
> MPolynomialRing(QQ,2,order='lex'), all of the following polynomials:
>
> 3*x^2 + 1
> 3*x^5 + x
> 3*y^7 + 1
> 3*y + 1
On Jul 27, 9:20 pm, didier deshommes <[EMAIL PROTECTED]> wrote:
> Hi there,
> I'm trying to work with multivariate polynomials in SAGE and here are
> 3 features that I would like. Assume f is a multi-poly:
> * f.coefficients() for multivariate polynomials. I would like to get
> all the coefficie
Hi Didier,
I hope you don't mind that I have some remarks about your patches
The f.coefficients() patch is only against MPolynomial_libsingular but is
implemented generally enough to be pushed down to MPolynomial such that
MPolynomial_polydict may benefit from it as well. Also, using f.dict()
2007/7/28, William Stein <[EMAIL PROTECTED]>:
> I think you should just implement all of the above and send me
> a patch. :-).
I had some time to kill on the plane, and I decided to follow your
advice :) . I've attached the 3 patches.
And for pth norm, I meant the l_p norm
(http://mathworld.wolfr
On 7/27/07, didier deshommes <[EMAIL PROTECTED]> wrote:
> Hi there,
> I'm trying to work with multivariate polynomials in SAGE and here are
> 3 features that I would like. Assume f is a multi-poly:
> * f.coefficients() for multivariate polynomials. I would like to get
> all the coefficients of f
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