Installing and operating WP QuickLaTex was quite puzzling for me, I hope the following instructions are useful!
In WordPress, go to the control panel and select Plugins, Then Add New:
![](https://www.wavewalkerdsp.com/wp-content/uploads/2021/08/plugins.png)
Search for WP QuickLatex, then click Install and Activate:
![](https://www.wavewalkerdsp.com/wp-content/uploads/2021/08/wplatex.png)
Then click QuickLatex in the WordPress control panel:
![](https://www.wavewalkerdsp.com/wp-content/uploads/2021/08/quicklatex.png)
Click the Advanced tab and select Use LaTex Syntax Sitewide:
![](https://www.wavewalkerdsp.com/wp-content/uploads/2021/08/advanced.png)
Then click Update QuickLaTeX Settings:
![](https://www.wavewalkerdsp.com/wp-content/uploads/2021/08/update.png)
Click the Advanced tab and select PNG from the Image Format drop down:
![](https://www.wavewalkerdsp.com/wp-content/uploads/2021/08/system.png)
Then click Update QuickLaTeX Settings:
![](https://www.wavewalkerdsp.com/wp-content/uploads/2021/08/update.png)
You can now use LaTeX formatting! I have had problems with Elementor when using inline math in dollar-signs, $ … $, but you can use \ ( … \ ) instead, just be sure to remove the spaces between \ and (:
\ ( y = ax^2 \ )
You can also use latex notation such as double-dollar signs $$ … $$,
$$x[n] = e^{j\theta}$$
as well as begin{equation} … end{equation}, just remove the space between \ and begin and end:
\ begin{equation}
y[n] = 0.9x[n] + 0.1y[n-1]
\ end{equation}
(1)