Too many search results for commenting multiple lines, because apparently that's hard to do.
I'm interested in commenting a single line.
Example:
%COMMENT% I learned about \numexpr at https://tex.stackexchange.com/a/422227/140752
\put(\numexpr1+1,-3){\hbox{\includegraphics[scale=1]{pdfs/1.pdf}}}
What should I put at %COMMENT%?
%is sufficient (you're already doing that). – Werner Apr 08 '20 at 20:43