Funny you should mention that, because that was actually the idea that we came up with a while back that was considered the best (well at least I considered it the best). See https://groups.google.com/d/msg/sympy/pyzfmCq_thI/UwFLv_RDX2IJ. You're starting to dive into a controversial topic here, which deals in the core of the design of SymPy, so fair warning.
The next best solution I think was to create a non-Expr Symbol and use that, which would take care of Matthew's worries about assumptions and so on. That should not be that difficult to do, I think. Aaron Meurer On Fri, Apr 25, 2014 at 12:34 PM, Clifford Wolf <cliffordvie...@gmail.com> wrote: > On Friday, April 25, 2014 6:33:26 PM UTC+2, Matthew wrote: >> >> Regarding Symbol in MatrixSymbol what we really need is a Basic that just >> holds a name/string. The current Symbol object does that plus a whole lot >> of other things that we don't need. Probably we just need a String(Basic) >> class or something similar. > > > Just thinking out loud: What's about storing the name directly in > MatrixSymbol.name and overloading MatrixSymbol.func to [return a closure > that] inject[s] the name into a new instance. > > This would make sense because afaics the whole idea behind the .args > interface is make it easy to implement generic transformations, and I don't > see why such transformations should ever want to change the name of a > MatrixSymbol. In this sense the dimensions are the only 'arguments' to a > MatrixSymbol. (The symbol name is afaics not an 'argument' of Symbol objects > either.) > > -- > You received this message because you are subscribed to the Google Groups > "sympy" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to sympy+unsubscr...@googlegroups.com. > To post to this group, send email to sympy@googlegroups.com. > Visit this group at http://groups.google.com/group/sympy. > To view this discussion on the web visit > https://groups.google.com/d/msgid/sympy/26b50466-8966-49e0-94d1-075011a6a063%40googlegroups.com. > > For more options, visit https://groups.google.com/d/optout. -- You received this message because you are subscribed to the Google Groups "sympy" group. To unsubscribe from this group and stop receiving emails from it, send an email to sympy+unsubscr...@googlegroups.com. To post to this group, send email to sympy@googlegroups.com. Visit this group at http://groups.google.com/group/sympy. To view this discussion on the web visit https://groups.google.com/d/msgid/sympy/CAKgW%3D6LB2TqN_uBxS9hxJ7Q6Yd2Ww-JN7EjebMWbH8fej4UFkA%40mail.gmail.com. For more options, visit https://groups.google.com/d/optout.
