On Thu, Mar 12, 2009 at 09:10:43PM -0700, Robert Bradshaw wrote:
> >  - I see 10*bla as (potentially) involving two independent things:
> >    coercion and multiple dispatch
> 
> Yep, though in my mind they're a bit more intertwined (e.g. for a \in  
> Z, b \in QQ[x], one can do a*b by doing a coercion then an action,  
> b._lmul_(QQ(a)).

Definitely.

> > For whatever it's worth, I had started writing a draft of paper on the
> > coercion (= implicit conversion) and multiple dispatch mechanism I had
> > implemented in MuPAD:
> >
> > http://mupad-combinat.svn.sourceforge.net/viewvc/mupad-combinat/ 
> > trunk/MuPAD-Combinat/Papers/2007-12-13-Overloading.tex?view=markup
> >
> > Strangely enough, I lost part of my motivation for working on this
> > shortly after :-)
> 
> I'll take a look. I've been intending to write this up as a paper  
> too, but haven't found the time yet.

Well, maybe we could join forces, and write a paper "coercion and
dispatch in Sage and MuPAD". Having more than one implementation of
the concept would even make it a standard :-)

Best,
                                Nicolas
--
Nicolas M. ThiƩry "Isil" <nthi...@users.sf.net>
http://Nicolas.Thiery.name/

--~--~---------~--~----~------------~-------~--~----~
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
-~----------~----~----~----~------~----~------~--~---

Reply via email to