Hi all, I'm using Sage-5.13 on Virtual Box 4.3.8 and I want to use the inbuilt polynomial methods for testing irreducibility, factorizing and homogenizing polynomials. I know that I need to coerce between univariate and multivariate polynomial rings to do this, but whenever I try this the image under coercion has parent <class 'sympy.core.add.Add'>, instead of the multivariate polynomial ring. The code I have used is below.
R.<u> = ZZ['u'] S.<u,v> = ZZ['u,v'] f g = S(f) parent(g) I'm not sure if it's relevant but my polynomial f is defined by taking a list of coefficients and then adding relevant powers of u multiplied by each coefficient to an initial 0 polynomial. I mention this because if I define the polynomial explicitly then my commands work as expected. Thanks, Tristan -- You received this message because you are subscribed to the Google Groups "sage-support" group. To unsubscribe from this group and stop receiving emails from it, send an email to sage-support+unsubscr...@googlegroups.com. To post to this group, send email to sage-support@googlegroups.com. Visit this group at http://groups.google.com/group/sage-support. For more options, visit https://groups.google.com/d/optout.
