Pandoc Markdown, LaTeX Math and DOCX: tag{xx} not working in DOCX

Pandoc Markdown, LaTeX Math and DOCX: tag{xx} not working in DOCX

[Andrew Logan]

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I am using VS Code, Markdown and Pandoc to produce cross-platform documents 
with math. For an equation, it is useful to use the Latex \tag{} command to 
number equations.

For example

    $$
        e^{i\pi} +1 = 0 \tag{99}
    $$

will produce a TEX file, a PDF, and HTML files all of which will properly 
number the equation as (99) justified to the far right. The DOCX file will 
fail to work properly with the \tag{99} command and the equation will not 
even be converted but the raw Latex command are not converted or the DOCX 
file may even fail to load.

I have one work around of using

    $$
        e^{i\pi} +1 = 0 \quad \quad \quad (99)
    $$

Which is not right-justified. I think I can use HTML tags but this degrades 
the usefulness of the document in LaTeX and I am trying to stay with 
Markdown and Math-Latex. I've thought about using LaTeX alignment tags, but 
this becomes very complicated and error prone with more complex equations 
such as matrices or multiple equations and in any case, it doesn't solve 
the right justification issue.

Is there a better solution for numbering equations which works in all 
document types? Or is this a bug in Pandoc that can be fixed? I understand 
if it is difficult or impossible to make a proper DOCX reference, but at a 
minimum it would be nice to ignore the \tag{} or change to plain text. It 
is rather frustrating because the HTML and PDF look just about perfect when 
using the \tag{} command.


Thanks for any help, my apologies if I didn't find the answer in the 
documentation or made a noobee error.


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Re: Pandoc Markdown, LaTeX Math and DOCX: tag{xx} not working in DOCX

[John MacFarlane]

If you just want numbers and don't absolutely need them
right-aligned, you can use the example list syntax supported
by pandoc.

  (@foo)  $e=mc^2$

  Einstein's equation (@foo) is...
 
This also gives you cross-references, as the example illustrates.
It will work in every output format pandoc supports.