Re: [Maxima-discuss] Encoding of bold, underscored, subscripted and superscripted identifiers by wxmaxima

[Gunter K. <gu...@pe...>]

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On 12.12.2015 18:34, Richard Fateman wrote:
> On 12/12/2015 12:30 AM, Gunter Königsmann wrote:
>> This would mean that you can enter things that are legal for
>> wxMaxima - - but will throw an error in maxima itself as they
>> will in xMaxima,
> 
> If the encoding is always legal in Maxima, then why should there be
> a problem?

This is a good idea. The original post contained something like a{e}
for a with e as subscript. Or at least I was convinced that it did
this - and this I found both elegant and dangerous as it would make
wxMaxima's notation incompatible to maxima, when subscripts were used.

> A symbol that looks like
> 
> M_Bold  should be ok in xmaxima.
It should be OK and if both wxMaxima and xMaxima use the same notation
here - the projects would set a standard the others might follow.

What I would still be slightly afraid of in case we decide to use
subscripts in a notation that is currently legal in maxima is: Nothing
makes all maxima-related projects use the same notation - so there is
the possibility they can grow apart in some details of the notation.
If maxima would implement this notation first its notation would
automatically set the standard everybody has to adhere to.

> I'm not sure what one might want, e.g. a variables superscript 
> M_Bold_script[1,2,nil,nil]  ?
> 
> Axiom allows 4 subscript positions,  sub super, pre-super and 
> pre-sub...

LaTeX also provides the bbm package that provides letters like the N
with three vertical lines instead of two that marks the natural
numbers... ...if we start adding new notations we should perhaps first
think about how fast we want to go and where we want to stop.


Kind regards,

Gunter.

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