This has cut my computation time to a hundredth of that it was, thanks.
On Wednesday, 22 May 2013 01:10:40 UTC-4, Jeroen Demeyer wrote:
>
> On 05/22/2013 12:24 AM, Michael Orlitzky wrote:
> > Singular (included in sage) has a library that can quickly count the
> > number of real roots in an inte
On 05/22/2013 12:24 AM, Michael Orlitzky wrote:
Singular (included in sage) has a library that can quickly count the
number of real roots in an interval:
http://mate.dm.uba.ar/~alidick/etobis/rrc.pdf
I don't see an easy way to interface with it, but you could probably
come up with something
On 05/20/2013 05:19 PM, Theo Belaire wrote:
> I have a large computation where I need to compute the number of
> positive eigenvalues of a matrix. I am currently computing all the
> eigenvalues then counting how many are positive, but I see when
> profiling that "{method 'roots' of
> 'sage.rings.po
I haven't explicitly set the ring it's working over, but all the entries of
the matrix are integral.
On Monday, 20 May 2013 20:37:55 UTC-4, William wrote:
>
> On Mon, May 20, 2013 at 2:19 PM, Theo Belaire
> > wrote:
> > I have a large computation where I need to compute the number of
> positiv
On Mon, May 20, 2013 at 2:19 PM, Theo Belaire
wrote:
> I have a large computation where I need to compute the number of positive
> eigenvalues of a matrix.
> I am currently computing all the eigenvalues then counting how many are
> positive, but I see when profiling that "{method 'roots' of
> '
I have a large computation where I need to compute the number of positive
eigenvalues of a matrix.
I am currently computing all the eigenvalues then counting how many are
positive, but I see when profiling that "{method 'roots' of
'sage.rings.polynomial.polynomial_element.Polynomial' objects}" i
