Formula:DA art
<section end=art._{{subst:#expr:{{{2}}}-1}} /> <section begin=art._{{{2}}} />
{{subst:#if:|
{{{3}}}
}}
{{{2}}}.
Helper to create a section (see transclusion help at en.wikisource) per article in Disquisitiones arithmeticae.
Usage:
{{subst:DA art|chapter_number|article_number}}
or
{{subst:DA art|chapter_number|article_number|subsection_heading}}
Note: This is project-specific formula: it is very highly improbable that you may use it as such for another proofreading project. If you think the functionality of allowing one to cut a text in small bits ad volo is useful, you have to make a copy and tweak it for the book at hand.