john_perry_usm wrote: > I'm pretty sure this is a bug, but just in case: > > sage: diff(sec(x)) > D[0](sec)(x) > sage: plot(diff(sec(x)), 0, pi/4) > ...traceback omitted... > AttributeError: 'sage.symbolic.expression.Expression' object has no > attribute '_set_extra_kwds' > sage: f = diff(sec(x)) > sage: f(x=0) > D[0](sec)(0) > > The same thing happens for cot(x) and csc(x). > > Using 1/cos(x) works just fine, which baffles me. Is this something > that can be fixed, or is it not broken? >
I'm pretty sure this is already fixed: http://trac.sagemath.org/sage_trac/ticket/6956 Jason -- Jason Grout --~--~---------~--~----~------------~-------~--~----~ 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 For more options, visit this group at http://groups.google.com/group/sage-support URLs: http://www.sagemath.org -~----------~----~----~----~------~----~------~--~---
