Mixed Typst and LaTeX

This note does not declare a math: engine, so every formula is tried with Typst first and falls through to KaTeX if Typst rejects it. The two styles sit side by side on purpose — this is what our vaults actually look like.

Typst formulas

Inline: and and .

LaTeX formulas

Inline: $\mathrm{Nat}(\mathrm{Hom}(X,-),F)\cong F(X)$ and $a_{ij}$ and $\hat{y}=X\beta$.

$${\int }_{x\in \mathcal{C}}[\mathcal{C}(a,x),Fx]\cong Fa$$ $$\left(\begin{array}{cc}a& b\\ c& d\end{array}\right)\left(\begin{array}{c}x\\ y\end{array}\right)=\left(\begin{array}{c}ax+by\\ cx+dy\end{array}\right)$$

Both in one paragraph

The Typst and the LaTeX ${\lim }_{h\to 0}\frac{f(x+h)-f(x)}{h}$ should render identically, each by a different engine.

Valid in both

parses as either. Typst gets it, and the result is the same either way.