The idea is to convert latex fragments into png for display in html model.
There is a role called latex that can be used for inline
latex expressions: :latex:`$\psi(r) = \exp(-2r)$` will
produce . Inside the back-tics you can write
anything you would write in a LaTeX ducument.
For producing displayed math (like an equation* environment in a LaTeX document) there is a latex role. If you write:
.. latex-math:: $\psi(r) = e^{-2r}$
you will get:
No more info at this time.