Hello! We have a heated debate on http://trac.sagemath.org/sage_trac/ticket/10140 regarding the following issue.
When a user writes Cone(rays=[(1,0), (0,1)]) and the internal framework that eliminates unnecessary generators comes up with a cone generated by (0,1) and (1,0) (i.e. same rays but in reversed order), should the order given by the user restored by default, or should we have sage: C = Cone(rays=[(1,0), (0,1)]) sage: C.rays() [(0,1), (1,0)] Obviously, any case is mathematically valid. I argue that if a user gives rays in certain order, then (s)he may want them in that particular order. (Restoring the order may be a slow down, but there can be an optional parameter to turn it off.) Volker argues that we should not make cones decorated unless we are explicitly asked to. (Those who care about the order, should use some other class/function like OrderedCone.) More details/issues are available on the ticket, but since many of them are a matter of taste and personal preferences, it would be nice to hear what do multiple people think of it, not just two of us ;-) Thank you! Andrey -- You received this message because you are subscribed to the Google Groups "sage-combinat-devel" group. To post to this group, send email to sage-combinat-devel@googlegroups.com. To unsubscribe from this group, send email to sage-combinat-devel+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/sage-combinat-devel?hl=en.
