On Sat, Nov 28, 2009 at 3:06 PM, Stefan Boettner <[email protected]> wrote: > Hello, > > I would like to factor multivariate polynomials that have parameters > in the coefficient field, for example: > > K.<a>=PolynomialRing(QQ,1) > K=FractionField(K) > R.<x,y>=PolynomialRing(K,2) > > Now I would like to factor elements in R, such as x^2-m^2*y^2, which > actually works. However, when I ask to have "more trivial" elements > such as x or 1 factored, it fails with a NotImplementedError (for x) > or IndexError ("list index out of range" for 1). What's wrong?
Please give the simplest explicit example that raise IndexError, as that might be a bug. Regarding NotImplementedError, it means what it sounds like -- the capability you want isn't implemented. That said, can't you just factor over a polynomial ring in x,y,a? -- William -- To post to this group, send email to [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/sage-support URL: http://www.sagemath.org
