Re: Unable to use longdivision package with LaTeX

[Bastien DUMONT <bastien.dumont-VwIFZPTo/vqsTnJN9+BGXg@public.gmane.org>]

You can answer your question by searching for files containing "\longdivision" in your TeX installation (the texmf/ or texmf-dist/ directory). In this case, the package "unicode-math" already defines \longdivision as a long division rule (the Unicode x027CC character, if I understand well).

The long-term solution would be to ask the developpers of longdivision to provide an alias when the macro is already defined. For now, one possible workaround is to place a copy of longdivision.sty in the same folder as the MD file and to replace \longdivision with e.g. \mylongdivision in the following line:

\NewDocumentCommand \longdivision { omm } {

Then, you will be able to use \mylongdivision in your document instead of \longdivision.

Of course, you can also remove \usepackage{unicode-math} from your template if you are sure that you don't need it.

Le Saturday 09 December 2023 à 09:09:50PM, R (Chandra) Chandrasekhar a écrit :
> Dear Folks,
> 
> The .tex file below compiles with lualatex without murmur:
> 
> ---
> \documentclass{article}
> \usepackage{longdivision}
> \begin{document}
> \longdivision{516}{27}
> \end{document}
> ---
> 
> and the result is attached as longdivision.png.
> 
> However, when I compile the equivalent markdown file, md-ld.md,
> 
> ===
> ---
> title: "Test of long division"
> date: 2023-12-09
> header-includes:
>   - \usepackage{longdivision}
> ---
> 
> This is a test of long division.
> 
> $$
> \longdivision{516}{27}
> $$
> ===
> 
> using
> 
> pandoc --from markdown --to latex --pdf-engine lualatex --standalone
> --output md-ld.pdf md-ld.md
> 
> I get the error message
> 
> ---
> Error producing PDF.
> ! LaTeX cmd Error: Command '\longdivision' already defined.
> 
> For immediate help type H <return>.
>  ...
> 
> l.192 }
> ---
> 
> If I leave out the longdivision package, and use the same command line, it
> compiles, but the output of the long division is not correct and is shown in
> the image pdf-from-pandoc.png.
> 
> Can someone please tell me which package is "already defining" the
> \longdivision command, and also how I might get the desired result from the
> .md file?
> 
> Thanks.
> 
> Chandra
> 2023-12-09
> 
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