P.S. Your website has serious issues with my language (Italian) and I suppose also with anything different from English and French. Untranslated pages are rendered as blank pages in the user language, instead of defaulting to English. The website is not usable in this state unless you append _ en to the URL each time.
A Mastodon instance for maths people. The kind of people who make \(\pi z^2 \times a\) jokes.
\) for inline LaTeX, and
\] for display mode.