\magnification \magstep2
\nopagenumbers

%%%% (**)** (***)* *(**)* *(***) **(**)

%% $$
%% (**)**, \quad (***)*, \quad *(**)*, \quad *(***), \quad **(**)
%% $$

%%%% \mathcode`\*="2203 \ast=\mathchar"2203
%%%% * = \ast is a \mathbin, use it as \mathord
\def\x{{*}} % same as \def\x{\mathord\ast}
$$
(\x\x)\x\x \qquad
(\x\x\x)\x \qquad
\x(\x\x)\x \qquad
\x(\x\x\x) \qquad
\x\x(\x\x)
$$

\bye

%%%%%%%%

%% html tag

%%%% <img src="images/assoc5.png"
%%%%    alt="(**)** (***)* *(**)* *(***) **(**)"
%%%%    width="780" height="36">

%%%%%%%%

%% png creation (normal size, transparent)

%%% pdftex assoc5.tex
%%% pdftocairo -png -singlefile -transp -r 180 assoc5.pdf tmp
%%% magick -define png:exclude-chunk=date,time tmp.png -trim +repage assoc5.png
%%% optipng assoc5.png %% no effect

%%%% magick adds white (fallback) background to the transparent image
%%%% and has the convenient option -trim.

%%%% Image size is 780x36.

%% program versions

%%% This is pdfTeX, Version 3.14159265-2.6-1.40.20 (TeX Live 2019/Debian) (preloaded format=pdftex 2024.3.16)

%%% pdftocairo version 0.86.1
%%% ImageMagick 7.1.1-43 Q16-HDRI x86_64 22550 https://imagemagick.org
%%% OptiPNG version 0.7.7

%%%%%%%%

%%%% First version (using tex, dvipng):
%%% 2024-06-21

%%%% Recompiled:
%%% 2025-08-09

%%%%%%%%
