Hi, On Sat, 10 Nov 2012 19:16:55 -0800 (PST) Jean-Pierre Flori <jpfl...@gmail.com> wrote:
> IIRC there was some work about this done (but not merged?). > No time to search myself now, but searching trac and the pynac-devel > list should give some hints, or contacting Burcin and or Florent > Hivert. Thanks for pointing this out Jean-Pierre. Here is the ticket: http://trac.sagemath.org/sage_trac/ticket/11576 I don't remember if the patch attached to the ticket is the most recent one. This might be better: http://sage.math.washington.edu/home/burcin/indexed_expression_20111118.patch IIRC, the main outstanding issue was how to handle the conversion of these to maxima. At some point I promised to write a function that does some name mangling before the maxima calls, but never got to it. Perhaps libmaxima can handle these without this hack anyway. In any case, we need to revisit the code that converts symbols to maxima and back because of #13655. So this might get solved on the way. > On Wednesday, November 7, 2012 8:25:24 AM UTC-6, Michael Orlitzky > wrote: > > > > On 11/06/2012 10:51 PM, Andrey Novoseltsev wrote: > > > On Nov 6, 7:14 am, Jason Grout <jason-s...@creativetrax.com> > > > wrote: > > >> What about a[None] returning a? That's a little awkward, I > > >> guess. > > >> > > >> Thanks, > > >> > > >> Jason > > > > > > I would never think that a[None] would return a, whatever a is! > > > I'd expect something "empty"... > > > > I've just removed the parent symbol entirely (and cleaned up the > > code a bit). Now only the list notation works. > > > > If a(1) returned 'a1', it was not preposterous to have a() return > > 'a'. But a[] is a syntax error, so to hell with it =) How do these interact with existing symbolic expressions in arithmetic or function application? Cheers, Burcin -- You received this message because you are subscribed to the Google Groups "sage-devel" group. 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. Visit this group at http://groups.google.com/group/sage-devel?hl=en.
