On Tuesday 01 March 2011, Simon King wrote:
> Hi Robert,
>
> On 1 Mrz., 01:00, Robert Goss <goss.rob...@gmail.com> wrote:
> > I have 2 ideals over the complex field and I would like to take their
> > intersection. If I try and use the intersection method on one of the
> > ideals i get an error message from singular stating the following type
> > error:
> >
> > TypeError: Cannot call Singular function 'intersect' with ring
> > parameter of type '<class
> > 'sage.rings.polynomial.multi_polynomial_ring.MPolynomialRing_polydict_dom
> > ain'>'
>
> Sage uses a C-library version of Singular to do intersection
> (libSingular), but...
>
> > This was generated by the code:
> > R.<x,y> = PolynomialRing(CC, 2)
>
> ... unfortunately it does not use libSingular for rings with complex
> coefficients:
I started changing that (only RR so far) in:
http://trac.sagemath.org/sage_trac/ticket/7577
but the ticket got stuck because we need to decide whether it's okay to use
MPF instead of MPFR for multivariate polynomials.
Cheers,
Martin
--
name: Martin Albrecht
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