On Tue, Nov 18, 2014 at 2:37 PM, Stefan <stefanvanz...@gmail.com> wrote:
> Problems arise when thinking about more complicated mathematical objects. I
> don't know if I simply lack the appropriate Mathematica knowledge, but years
> ago, when I implemented matroids in Mathematica, a matroid was simply a list
> with 6 elements (groundset, representation matrix, and I forget what else)
> and head Matroid. To access the elements of that list, you did stuff like
> this:
>
> lM = Map[If[# == 0, 0, 1] &, M[[2]][[#[[2]] & /@ M[[3]], #[[2]] & /@
> M[[4]]]], {2}];Holy f*2}];ng s&/@! > > I don't miss that aspect of Mathematica one bit! Python objects are so much > nicer, and we still get lambda functions when we need them. > > Also, it might be experience, but I spent WAY more time debugging my > Mathematica code than debugging my Python code. > > -- > 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. > For more options, visit https://groups.google.com/d/optout. -- William Stein Professor of Mathematics University of Washington http://wstein.org -- 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. For more options, visit https://groups.google.com/d/optout.
