Hello, I opened a ticket
Wrong approximate real roots of cubic equation and matrix eigenvalues #412 because frustrating me too much :-) (joking) Is it ok or am i math foolish ? Maybe there are two tickets in one : one for Maxima (behind the scene solver) and one for Sage (converting argument calls). I have seen similar problems on other geometric computations involving equations solving ... but in my special case of geometric worksheet (intersection of conics) it is a core problem, because trying to get a degenerate conic...I need to have sometimes EXACT roots of cubics and sometimes APPROXIMATE but "pure real" root finding is a necessary condition for my computations. Dominique. PS : I am not in hurry ... I will code a cubic equation solver myself (for symmetric matrix/equations). -- 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 https://groups.google.com/group/sage-support. For more options, visit https://groups.google.com/d/optout.
