Hi Andreas,
Andreas Tille, on 2022-08-04:
> So if someone finds a clue how to build this file properly
>
>
> \documentclass[]{scrartcl}
> \usepackage[utf8]{inputenc}
> \usepackage{hyperref}
> \begin{document}
> Bla \textbf{TIR (□x$\upsigma$/Exp.) 3D}
> \end{document}
>
>
> the bug can be fixed.
The unicode character for the square box □ is not defined, but
you can replace it by: \Box{}. In addition this requires to use
the package "latexsym", and to be written in mathematical
context, so \(\Box\), or $\Box$ if you prefer sticking to the
style of the author.
Once this is done, pdflatex chokes on $\upsigma$ which looks to
originate from TeX StackExchange[1], so maybe the \Box{} thing
will be sufficient in the context of the original document. But
if you also cannot render the \upsigma thing, then maybe try a
regular \sigma. A working test document looks like:
\documentclass[]{scrartcl}
\usepackage[utf8]{inputenc}
\usepackage{hyperref}
\usepackage{latexsym}
\begin{document}
Bla \textbf{TIR (\(\Box\)x$\sigma$/Exp.) 3D}
\end{document}
Once rendered, your test document looks like:
_____ _ _________
Bla TIR (□xσ/Exp.) 3D
with the overline figuring a bold face. I don't know for sure
this is the expected result, but fair enough. I suspect the
initial intent was to get the whole "TIR.*3D" into nice bold
font.
[1]: https://tex.stackexchange.com/questions/197574/upright-boldface-lowercase-greek-math-symbols-with-cbgreek-glyphs
Hope this helps,
--
Étienne Mollier <emollier@emlwks999.eu>
Fingerprint: 8f91 b227 c7d6 f2b1 948c 8236 793c f67e 8f0d 11da
Sent from /dev/pts/2, please excuse my verbosity.
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