On Jun 3, 8:45 pm, Robert Bradshaw <rober...@math.washington.edu>
wrote:
> Currently symbolic variables are un-indexable. What would people
> think of having indexing create new subscripted variables?
>
> sage: a = var('a')
> sage: a[0]
> a_0
> sage: latex(a[1,2])
> a_{1,2}
>
I like it, this idea could also be expanded to vectors, like
a[0:3] == vector([a_0, a_1, a_2, a_3]) # note, also a_3
and probably, the var constructor should also be more intelligent,
i.e. var('a[0:3]') creates all the a_i (and avoids the unindexed 'a'
you would need in your 2-step approach above)
h
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