## MathJax Cheatsheets and Introduction

Submitted by Josh on Fri, 2017-03-31 10:50MathJax is a JavaScript library that allows people to embed mathematical formulas in web pages using various formats like TeX, MathML, and ASCIImath. MathJax is installed on this website, so anyone can use it in the forum, blogs, and wiki.

**Sample output:** MathJax allows users to enter TeX and get back formulas like this:

$$\sum_{i=0}^n i^2 = \frac{(n^2+n)(2n+1)}{6}$$