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Re: Latex superscripts, subscripts and curly braces

From: Hans Lonsdale
Subject: Re: Latex superscripts, subscripts and curly braces
Date: Tue, 3 Jan 2023 00:02:19 +0100 (CET)

> ----------------------------------------
> From: Emanuel Berg <>
> Sent: Mon Jan 02 20:01:29 CET 2023
> To: <>
> Subject: Re: Latex superscripts, subscripts and curly braces
> Hans Lonsdale wrote:
> >> Are we talking when you edit the source?
> >
> > Yes. After editing the source I would like to see a hint of
> > how things would look like, and also to make it easy for me
> > to follow the latex code itself. I also use it in
> > conjunction with prettify-symbols.
> But that's the whole point, you have one language to express
> what should be shown and then a compiler to produce a document
> according to what you express in that language. There is no
> bridging those to in an Emacs buffer to any extent that will
> ever matter, sorry.
> But you can have a layer in between, some WYSIWYG editor that
> can also produce LaTeX which in turn is compiled, but then you
> loose the only edge there really is to LaTeX, namely the
> ability to get it exactly the way you want it down to the
> tiniest detail - so if you let that go, you are better of with
> something else anyway - I don't know - Markdown, Org-mode etc?

The scope is to hove some form of simple structure even on the latex 
source code.  This facility already exists and can improved a little bit more.
> >> What do you input then, exactly?
> >
> > For instance, consider
> >
> > {\begin{aligned}
> > \langle \psi _{{jk}},\psi _{{lm}}\rangle 
> > &=  \int _{{-\infty }}^{\infty }\psi _{{jk}}(x)\overline {\psi 
> > _{{lm}}(x)}dx\\
> > &= \delta _{{jl}}\delta _{{km}}
> > \end{aligned}}
> >
> > I would not like to have the _ and {} showing in the
> > expression \psi_{jk}
> It's possible but I don't believe it this whole idea or
> attitude, it is such an uphill battle it is insane, you need
> to let that go or approach it in another way.
> > But for industrial applications [...] In industrial
> > applications, equations are customarily very terse with lot
> > of spaces wasted printing _ ^ { }
> I don't think there are industrial applications of LaTeX that
> differ in this sense from any one else's applications, sorry.

Not industrial application of latex.  But industrial applications involve more 
complicated equation frameworks.  The ability to show some identifying  
structure in the source code would be something separate from the final

> underground experts united

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