On Sat, Dec 1, 2012 at 6:42 PM, Shriramana Sharma <samj...@gmail.com> wrote:
> On Sat, Dec 1, 2012 at 5:32 PM, Chris Smith <smi...@gmail.com> wrote:
> > If the functions work, then no. But functions don't carry assumptions.
>
> Can you clarify what you mean by "assumptions"?
>
> And even though it seems (I haven't yet implemented that part of my
> program yet) that it would be sufficient to use Functions the way you
> have indicated, I still think it would be useful to have a symbolic
> array kind of variable where each subscripted item i.e. val[0] val[1]
> etc would be a distinct symbol. I am having very very vague ideas of
> something like:
>
> class SymList(Expr):
> def __init__(self,name,size):
> self.list=list(symbols(name+':'+str(size)))
>
> etc etc... so that if lamb=SymList('lamb',5) then lamb[0] lamb[1] ...
>
that's what symbols does for you; just store the result in an array if you
want:
>>> a=symbols('a:11')
>>> a[1]
a1
>>> a
(a0, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10)
Have you looked at Indexed?
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