On 2012-11-28, Nathann Cohen <nathann.co...@gmail.com> wrote: > --bcaec5171ecd442ad804cf90b70b > Content-Type: text/plain; charset=ISO-8859-1 > > Helloooooooooooooo !! > > I guess it's a perfect illustration of **limits** of the object-oriented >> approach. >> RSK takes (p,q) in PxQ and outputs (a,b) in AxB. >> Does this mean we have to knock ourselves out creaing classes for each >> pair of classes P,Q we have? >> > > NOooooooooooooooooooo ! We have metaclasses for that :-P > > >> And note that P and Q is so general that there are undoubtly zillions >> of functions out there which can take P and Q and output something that >> has absolutely nothing to do with RSK, SSYTs, even combinatorics in >> general. >> > > There's nothing outside of combinatorics. well, I can crosspost this to sage-nt :-)
> > Just put RSK in global scope (or, better, in a package, which incorporates >> stuff >> that deals with A and B, which here is much more restrictive than P and >> Q). >> > > Err... Or just define it as a function, inside of a module ? This way yes, that's exactly what I meant when I said "global scope" > everybody can have function (you know, the thing that is a method when you > have no object in front of it). Like a library, a simple library.... > With functions inside.... > You know, just C-style :-P > > Or, if you must go OO, you can think of RSK as a constructor >> for elements of AxB (do you have a class for pairs of tableaux >> already?). In this way you don't need to worry about a new >> class for PxQ, at least. > > > The thing is that what we know how to do is build meta classes. That's our > job, that's what we do best, that's how we make money. If nobody needs > metaclasses, what we should do is convince them that we they DO need > metaclasses :-P > > Nathann > -- 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.
