Thanks for your quick answers. Coming from Mathematica, I was expecting to add lists as vectors, multiply real numbers by lists, etc, without sub-classing or using another types (such as vectors in sage)
Do you advise me to add things to the preparser to have this behaviour or not? If so, how can I do it? On Sat, Jul 11, 2009 at 4:00 PM, Marshall Hampton <hampto...@gmail.com>wrote: > > > You could also make your own sub-class like: > > class mylist(list): > def sum(self): > return sum(self) > > but then you would have to explicitly cast things to this class. > > -M. Hampton > > On Jul 11, 11:47 am, Harald Schilly <harald.schi...@gmail.com> wrote: > > the int->integer replacement is done by a preparser. if you turn it > > off, sage is "pure" python only. > > the list is a pure python object and i don't think it makes sense to > > change anything. I recommend you to use a "vector", > > sage: vector(RDF, [1,2,3]) > > > > h > > > > On Jul 11, 6:41 pm, Carlos Cordoba <ccordob...@gmail.com> wrote: > > > > > Hi, > > > > > I noticed that the int python type is replaced by the Integer type in > > > Sage. I'm wondering if I could do the same with the list type, so I > > > can add a functionality I need to it. > > > > > Could you tell how I can do it? > > > > > Thanks, > > > Carlos > > > --~--~---------~--~----~------------~-------~--~----~ 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 -~----------~----~----~----~------~----~------~--~---
