# Using MathJax to typeset math expressions
**URL:** https://isgw-forum.colorado.edu/t/using-mathjax-to-typeset-math-expressions/20
**Category:** Site Documentation and Feedback
**Created:** [January 11, 2022, 7:59pm UTC](https://isgw-forum.colorado.edu/t/using-mathjax-to-typeset-math-expressions/20 "2022-01-11T19:59:43Z")
**Posts on this page:** 2
**Page:** 1
### Author:  [@JML](https://isgw-forum.colorado.edu/u/JML)
#### Post date: [January 11, 2022, 7:59pm UTC](https://isgw-forum.colorado.edu/t/using-mathjax-to-typeset-math-expressions/20/1 "2022-01-11T19:59:43Z")
The MathJax syntax is similar to \LaTeX syntax. That logo is itself an example of inline MathJax: `$\LaTeX$`.
Matrices
\begin{bmatrix} a\_{11} & a\_{12} \\ a\_{21} & a\_{22}\end{bmatrix} \times \begin{bmatrix} b\_{11} & b\_{12} \\ b\_{21} & b\_{22}\end{bmatrix}
```latex
$$
\begin{bmatrix} a_{11} & a_{12} \\ a_{21} & a_{22}\end{bmatrix}
\times
\begin{bmatrix} b_{11} & b_{12} \\ b_{21} & b_{22}\end{bmatrix}
$$
```
Complex equations
\widehat{\ell\,}(\theta\,;x)= \frac1n \sum\_{i=1}^n \ln f(x\_i\mid\theta)
```latex
$$
\widehat{\ell\,}(\theta\,;x)=
\frac1n \sum_{i=1}^n \ln f(x_i\mid\theta)
$$
```
---
### Author:  [@JML](https://isgw-forum.colorado.edu/u/JML)
#### Post date: [January 11, 2022, 8:14pm UTC](https://isgw-forum.colorado.edu/t/using-mathjax-to-typeset-math-expressions/20/2 "2022-01-11T20:14:00Z")