Originally submitted by @sebastinez

We still don't detect and render math expressions in:

Code blocks with the math prefix

The Cauchy-Schwarz Inequality

\left( \sum_{k=1}^n a_k b_k \right)^2 \leq \left( \sum_{k=1…

Inline expression

This sentence uses $` and `$ delimiters to show math inline: $\sqrt{3x-1}+(1+x)^2$