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["Andrey G. Grozin" <address@hidden>]

On Fri, 12 Oct 2012, François Poulain wrote:
> When I type something like '(%i1) powerseries(exp(x), x, 0)' in a maxima
> session, I get a result like '(%o1) sum_(i1=0)^∞(x^(i1))/(i1!)'
>
> However, I would have expected 'i_1' in place of 'i1'.
>
> To compare, in a "true" maxima session, the result of
> tex(powerseries(exp(x), x, 0)); is
> $$\sum_{{\it i_1}=0}^{\infty }{{{x^{{\it i_1}}}\over{{\it i_1}!}}}$$
>
> Do you think this should/could be done in the maxima plugin ?
In the "true" maxima, tex(i1) produces i_1; tex(i12) produces i_{12}; and 
so on. Also, tex(i[1]) produces i_1, tex(i[12]) produces i_{12}, and so 
on. So, there is no way to see the difference between i1 and i[1]. And 
these are two completely different language constructs. Therefore, in the 
maxima plugin, a special treatment of identifiers of the form 
<letters><digits> has been eliminated. i1 is just an identifier, like, 
say, i1j (tex(i1j) produces just i1j). This was done on purpose: an 
identifier is an identifier, and should look as an identifier. On the 
other hand, i[1] in the TeXmacs interface produces i_1.

Andrey