Hi Didier, I hope you don't mind that I have some remarks about your patches
The f.coefficients() patch is only against MPolynomial_libsingular but is implemented generally enough to be pushed down to MPolynomial such that MPolynomial_polydict may benefit from it as well. Also, using f.dict() and f.exponents() is very slow from a MPolynomial_libsingular point of view. To make it faster, one could just walk through internal Singular C list of monomials directly. The R.random_element method on the other hand seems to be specialized for MPolynomial_polydict only, i.e. you'd loose the speed advantage of MPolynomial_libsingular by constructing an MPolynomial_polydict in any case. Martin -- name: Martin Albrecht _pgp: http://pgp.mit.edu:11371/pks/lookup?op=get&search=0x8EF0DC99 _www: http://www.informatik.uni-bremen.de/~malb _jab: [EMAIL PROTECTED] --~--~---------~--~----~------------~-------~--~----~ To post to this group, send email to sage-devel@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-devel URLs: http://sage.scipy.org/sage/ and http://modular.math.washington.edu/sage/ -~----------~----~----~----~------~----~------~--~---