Re: MathJax problem with \gdef

[Christopher Dimech]

Another problem that crops up is that users cannot write  the following
code enclosed in @tex.  Users will have to add @math for every inline
expression, cluttering the code sustantially.  Perhaps we can add an
additional construct to allow inline math expressions together with text.
What do you think?

 @tex
  The traces identified by $\VPht\overline{R}_l(t)$ (black) demonstrate
  the improvement in the Microseismic Signal Level of the stacked
  waveforms as the amount of seismic data builds up.  The averaging
  period is shown next to each trace representing the estimated Green
  Function.  $\VPht\overline{R}_l(t)$ represents the Standard Coherence
  Average measured by using the classical Coherence Average [BR07]
  @FtNote{Bensen@comma{} Ritzwoller et al.@: (2007): Processing seismic
  ambient noise data to obtain reliable broad-band surface wave
  dispersion measurements.}@ref{bibl--Bensen--Ritzwoller--etAl--2007,,
  Bensen@comma{} Ritzwoller et al.@: (2007)}.
@end tex




> Sent: Thursday, November 12, 2020 at 1:35 PM
> From: "Christopher Dimech" <dimech@gmx.com>
> To: "Patrice Dumas" <pertusus@free.fr>
> Cc: "help-texinfo gnu" <help-texinfo@gnu.org>
> Subject: Re: MathJax problem with \gdef
>
> > Sent: Thursday, November 12, 2020 at 1:15 PM
> > From: "Patrice Dumas" <pertusus@free.fr>
> > To: "Christopher Dimech" <dimech@gmx.com>
> > Cc: "help-texinfo gnu" <help-texinfo@gnu.org>
> > Subject: Re: MathJax problem with \gdef
> >
> > On Thu, Nov 12, 2020 at 11:57:47AM +0100, Christopher Dimech wrote:
> > > Have done more tests with @tex, @math, and @displaymath.
> > >
> > > \gdef is working for pdf output but not with MathJax.
> >
> > I am not an expert in MathJax, but I think that MathJax only interpret
> > the LaTeX/TeX locally, so cannot know about \Desig and will only
> > interpret LaTeX/TeX "primary" commands.  Maybe there is a possibility to
> > give some TeX/LaTeX code to MathJax?  In addition, when outputting html,
> > @tex blocks are ignored.
>
> Correct, at present we neglect @tex.  This requirement complicates the problem
> because we cannot simply use @math and @displaymath.  Furthermore, 
> @displaymath
> only outputs one expression, whereas in @tex, one can have multiple $$math$$
> constructs.
>
>
> > I checked with latex2html and tex4ht.  The idea with latex2html and tex4ht
> > is that there are intermediary files with the @tex, @math and
> > @displaymath put in those files and then those files are run through
> > latex2html or tex4ht and then the html fragment from each of the
> > @-commands are put in the final output.  For latex2html the @tex and
> > @math and @displaymath are all put in the same file, so it works (though
> > I have not checked if the order is kept as in the input file).  For
> > tex4ht the @tex, @math and @displaymath are each in a different file, so
> > this does not work.  Maybe the code could be changed to handle that
> > case and try to put everything in the same file using the order of the
> > Texinfo file..
> >
> >
> > >
> > >
> > > > Sent: Thursday, November 12, 2020 at 11:46 AM
> > > > From: "Christopher Dimech" <dimech@gmx.com>
> > > > To: "help-texinfo gnu" <help-texinfo@gnu.org>
> > > > Subject: MathJax problem with \gdef
> > > >
> > > >
> > > > Have noticed a problem with including \gdef names in @math,
> > > > possibly introduced after the MathJax implementation. Defining
> > > > \Desig and calling it from @math{} fails.  It also fails when
> > > > doing output to pdf.
> > > >
> > > > @tex
> > > >   \gdef\Desig{\buildrel \rm def \over \equiv}
> > > > @end tex
> > > >
> > > > @math{\Desig}
> > > >
> > > >
> > > >
> > >
> >
>
>