We want MediaWiki to support more LaTeX AMSMath environments in its <math> environment.
This is part of a wish in the 2022 wishlist: https://meta.wikimedia.org/wiki/Community_Wishlist_Survey_2022/Editing/Missing_LaTeX_capabilities_for_math_rendering
These environments are already supported by MathJax. So, all we have to do is change texvcjs to allow these commands to be passed to MathJax in the backend.
- Extra environments are supported by texvcjs
AMSMath environments which we probably could support:
Notes for testing
See notes in T318524.
Example of these environments being used in wikitext: P34947