michal-h21
commented
2 years ago This works better:
\documentclass{article}
\usepackage{tikz}
\usepackage{pgfplots}
\pgfplotsset{compat=1.12}
\makeatletter
\def\eqalignno#1{\displ@y \tabskip\@centering
\halign to\displaywidth{\hfil$\@lign\displaystyle{##}$\tabskip\z@skip
&$\@lign\displaystyle{{}##}$\hfil\tabskip\@centering
&\llap{$\@lign##$}\tabskip\z@skip\crcr
#1\crcr}}
\makeatother
\def\enum#1(#2:#3){\refstepcounter{equation} \label{#1#2}
\eqno{({\mathrm{#1}\theequation}#3)}}
\def\enuma#1(#2:#3){\refstepcounter{equation}
\label{#1#2}({\mathrm{#1\theequation}}#3)}
\def\eoldnum#1(#2:#3){\eqno{({\mathrm{#1\ref{#1#2}}#3)}}}
\ifdefined\HCode%
\newenvironment{picmath}{\Picture*{}$$}{$$\EndPicture}
\else
\newenvironment{picmath}{$$}{$$}
\fi
\begin{document}
Beginning
$$ T \,,\enum(entropy:)$$% Equation (1)
expression
$$\frac{a}{b} \enum B(multinomial:)$$% Equation (B2)
and
$$ y \eoldnum (entropy:')$$% Equation (1')
also
$$ w \eoldnum B(multinomial:')$$% Equation (B2')
finally
% $$\eqalignno{x &= 2 &\enuma(align1:)\cr y &= 4\,.\cr}$$% Equation (3)
\begin{picmath}
\eqalignno{x &= 2 &\enuma(align1:)\cr y &= 4\,.\cr}% Equation (3)
\end{picmath}
In
\begin{tabular}{r|c|c}
& a & b \\ \hline
&
~
\begin{tikzpicture}\begin{axis}[ymin=1,xmin=0,ymax=3,xmax=4]
\node at (1,2) {$\bullet$};
\end{axis}\end{tikzpicture}%
&
\\ \hline
\end{tabular}
\end{document}
I've fixed your math macros, and introduced new environment: picmath. It is needed for your \eqalignno command, because it produces picture in math otherwise and it cannot be displayed.
I found that the Tikzpicture is removed by some table post-processing script (not make4ht post-processing, but other mechanism, called Xtpipes. It is more low-level and I don't really understand how it works). As a workaround, I found that it is not removed when you put some other content to the same table cell, like ~. The picture is still not displayed correctly, probably due the fact, that it is larger than the declared cell width.
This is the result:
gl-utah
ThiloteE
I can uncheck the one package labeled as "optional" (as I did) but I cannot uncheck any of the other packages.
so if no one suggests an alternative way of getting the newest make4ht, I may try this perhaps-not-so-risky route. Too bad the checkboxes in the MiKTeX Console sometimes cannot be deselected, like most checkboxes can.
but running make4ht and opening the ODT file in LibreOffice unfortunately yields
Opening the ODT file in Microsoft Word gives the same result, as does using LibreOffice to export the file to .DOCX format and then opening it in MS Word.
(Word displays something similar.) The "T" ought to be centered with respect to the entire line, not just with respect to the left-hand column. One way to construct equations with numbers in Microsoft Word is to make a one-row three-column table, with an empty left-hand column, the equation in the middle column, and the equation number set flush right in the last column. It seems that the configuration code so far sets up a one-row two-column format.
The "A" in the equation numbers would be for an Appendix. The last two equation numbers show two different ways of indicating a close relationship between an equation and a previous equation. The first way uses a lower-case letter, "a" in this case. Both letters in the full equation number should be upright, even if the surrounding environment is not upright, as is the case in this example. The second way of indicating a close relationship is to append a prime symbol (or, in the case of this example, two prime symbols). One has to avoid having such prime symbols misinterpreted as closing quotation marks, as in the last comment in 
. Your comment prompted me to experiment some more, and the alternative definition 
I use all of these environments (or their Plain TeX equivalents), but I use
The LaTeX file "FancyEqnNumbers_TikZTable.tex"
produces
but 
(Microsoft Word 2016 and 2019 cannot open this ODT file).
None of the equation numbers are properly placed, and two of the equations are undisplayed. Is there any way to fix these problems and get the tikz and \eqalignno lines to work? (The build.lua and config.cfg files I use are attached below; I gave them .TXT extensions to enable the uploads.)
build.lua,txt
config.cfg,txt
make4ht -c config.cfg -e build.lua -f odt FancyEqnNumbers_TikZTable.texends with a fatal error unless one comments out the lines of the tikzpicture and the \eqalignno. After commenting out those lines, one obtains an ODT file which appears in LibreOffice as