Brief introduction here.
Brief overview here
Mathjax/Latex example:\[ \pi = 4 \left( 1 - \frac{1}{3} + \frac{1}{5} - \frac{1}{7} + \frac{1}{9} - \ldots \right) \]
\[ \pi = 4 \sum_{n=0}^{\infty} \frac{(-1)^n}{2n + 1} \]
\[ \zeta(s) = \sum_{n=1}^{\infty} \frac{1}{n^s} \]
\[ \zeta(s) = \prod_{p \text{ prime}} \frac{1}{1 - p^{-s}} \]
Twemoji example:😎😎😎