On Saturday, March 21, 2015 at 3:40:07 AM UTC+2, Luv Agarwal wrote: > > I have added the implementation details of few functions in the draft > <https://github.com/sympy/sympy/wiki/GSoC-2015-Application-Luv-Agarwal:-Cylindrical-Algebraic-Decomposition> > . > > How can I implement refine_root (and dup_isolate_real_roots_sqf) for > polynomials over algebraic numbers? >
One would need a method for determining the sign of an algebraic number. Those in AlgebraicField (is_positive, is_negative, ...) are not suitable for this purpose. -- You received this message because you are subscribed to the Google Groups "sympy" group. To unsubscribe from this group and stop receiving emails from it, send an email to sympy+unsubscr...@googlegroups.com. To post to this group, send email to sympy@googlegroups.com. Visit this group at http://groups.google.com/group/sympy. To view this discussion on the web visit https://groups.google.com/d/msgid/sympy/d5b65059-5088-42a5-9f56-f2b5863f3c16%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.
