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Re: Setting Page Size and displaying result correctly


From: Gavin Smith
Subject: Re: Setting Page Size and displaying result correctly
Date: Tue, 6 Oct 2020 21:18:57 +0100
User-agent: Mutt/1.9.4 (2018-02-28)

(Please include the list when replying.  An easy way to do this is to
use "reply-all" instead of "reply".)

On Tue, Oct 06, 2020 at 09:04:04PM +0200, Christopher Dimech wrote:

> > > 2. Possibilities for using Texinfo for Screencasts, especially screencasts
> > > that include the display of mathematical expressions.
> > >
> > > The difficulty setting a different page size does not crop up for software
> > > manuals.  But the problem crops up when you want to use a texinfo document
> > > for a screen cast.  In such an instance, changing the page size would
> > > be important, because the standard paper sizes make the text too small
> > > for display purposes on the screen.
> >
> > I'm not too sure what your use case is for this but perhaps the HTML output
> > would be more appropriate for this?
> >
> > Display of mathematical expressions may be difficult with HTML, but it is
> > supposed to be possible.
> >
> > > This would enable texinfo to be used in many other circumstances in 
> > > addition
> > > to simply writing manuals.
> >
> > Writing manuals is the main purpose of Texinfo.  It is not a general
> > typesetting or formatting system for the display of arbitrary information.
> 
> Yes, but I have started an Official Gnu Package for Geological Subsurface 
> Imaging,
> with some serious mathematical content.  I often have to rewrite if I want to 
> use
> the material rather than just taking the texinfo code I used to make the 
> manual.
> I also know many people who would find using texinfo useful for similar types
> of work involving software and mathematics.  I gave up working with html.  
> And I
> would rather continue in texinfo than having to twitch purely to Pure Tex or 
> Latex.

Support for math rendering in HTML is a long-standing problem.  See this old
mail:

https://lists.gnu.org/archive/html/bug-texinfo/2016-05/msg00045.html

I think it is something that would be useful to a lot of users.  latex2html
does work if you have it installed and pass the "-c L2H=1" argument.  However,
it might be more reliable to use MathJax instead.  All this seems to require
is adding a few lines to the HTML file and wrapping the TeX math code with
some marker strings.  See https://www.mathjax.org/#gettingstarted

Unfortunately MathJax uses JavaScript, but there is not much alternative.  We
would have to deal with the complications of hosting JavaScript code and
ensuring it is appropriately licensed if MathJax support were made an official
part of Texinfo.

Could you point me towards a Texinfo file with a lot of math in it so I
could experiment?



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