> > > That's a substantial difference, IMHO. > > If you do a+b, then Python calls a.__add__(b). So, Python being object > oriented, you can easily overload the a.__add__ method. Sage has the > class sage.structure.element.RingElement, which overloads the > __add__ method, and if you sub-class it, you should in fact implement > _add_ with single underscore. > > But max is a Python builtin *function*. Overloading it by something else > would break a lot of things, and I guess performance would suffer, if > you overload max() by a function that first checks whether one of the > arguments is a symbolic expression. >
Thanks, Simon, for this great explanation - that is essentially the argument given at http://trac.sagemath.org/sage_trac/ticket/6949 where this was implemented. -- You received this message because you are subscribed to the Google Groups "sage-support" group. To post to this group, send email to sage-support@googlegroups.com. To unsubscribe from this group, send email to sage-support+unsubscr...@googlegroups.com. Visit this group at http://groups.google.com/group/sage-support?hl=en.
