> How many places is this used? In my (fairly fresh) Sage session, > there are only 9 actions in the action cache (on matrices, number > fields, and polynomials). I'd be willing to write the _get_action_ > methods for these cases, if it would help kill off some of the excess > error catching in coercion (I'm really not very fond of the idea "try > it to see if it will work", anyway).
+1 to remove the try if it's work. The very purpose of the category framework it to declare in a mathematical way, this that have a matematical meaning. In the case of a right action of A on B, on declare that B is a A-RightModule. It is much more informative by all respect than testing if a random element of A accept to be multiplied by a random element of B. Since when does mathematician believe in duck typing :-) ? They should have told me... Cheers, Florent --~--~---------~--~----~------------~-------~--~----~ To post to this group, send email to sage-devel@googlegroups.com To unsubscribe from this group, send email to sage-devel-unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-devel URLs: http://www.sagemath.org -~----------~----~----~----~------~----~------~--~---
