Welcome to Quartz

This is a blank Quartz installation. See the documentation for how to get started.

Add a little more KATEX

$\begin{array}{rlr}\text{z}{\int }_{\square }\omega \equiv {\int }_{{\sigma }_2^1}\omega +{\int }_{{\sigma }_2^2}\omega =\frac{1}{2}+\frac{1}{2}=1& & =\text{just the expected area of the square}\end{array}$

$$\left(\begin{array}{c}n\\ r\end{array}\right)=\frac{n!}{r!(n-r)!}$$ $$\left(\begin{array}{c}n\\ r\end{array}\right)=\frac{n!}{r!(n-r)!}$$

$\text{foo}y+\text{foo}y$