If your only problem is Volker's proposition that we "guess" the value of "action" according to the input I do not mind forgetting about it just to simplify this discussion, even though I think his idea is good.
Then you would not be able to call "orbit" without specifying the value of "action", and this terminates all doubts about the interpretation of input and output. Nathann -- You received this message because you are subscribed to the Google Groups "sage-devel" group. To unsubscribe from this group and stop receiving emails from it, send an email to sage-devel+unsubscr...@googlegroups.com. To post to this group, send email to sage-devel@googlegroups.com. Visit this group at http://groups.google.com/group/sage-devel?hl=en. For more options, visit https://groups.google.com/groups/opt_out.