On Nov 30, 1:27 pm, Alex Raichev <[EMAIL PROTECTED]> wrote: > > It would be helpful if you could give a more concrete example, e.g., a > > session > > where you have some elements, and finally want to do something with them. > > That's good idea, William. Let me back up to and change my question > to a more fundamental one. How does one compute in QQbar with Sage? > For example, how about factoring a polynomial, computing a radical > ideal, or computing a variety (see below)? I get the same error for > all these: "no conversion of this ring to a Singular ring defined". > > Alex
None of these things are implemented for polynomials over QQbar; and as far as I know there are no plans to implement them. Simpler variants of a couple of your problems are implemented: For univariate polynomials, you can find the roots with .roots (ring=QQbar), and it's trivial to compute the factorization from there. You can compute the variety (over QQbar) of a zero-dimensional ideal of polynomials with rational coefficients, using .variety(ring=QQbar). It would be great to have more functionality implemented for polynomials over QQbar; is that something you would be interested in contributing? Carl --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "sage-support" group. To post to this group, send email to sage-support@googlegroups.com To unsubscribe from this group, send email to [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/sage-support?hl=en -~----------~----~----~----~------~----~------~--~---
