Create community (forum) in WordPress & Enable Latex

Create a forum for a WordPress website

Go to Plugins in WordPress >> Add new plugin, and search for wpForo Forum by gVectors Team. Follow the instruction to install and configure the your Forum

Enable Latex for your forum

1/ Go to Plugins in WordPress >> Add new plugin, and search for WP-KaTeX by Andrew Sun. Install this Plugins.

2/ Go to your forum >> Settings.

In Forum Setting >> Post & Editor Settings. Scroll down almost to the end, switch the option Enable WordPress Shortcodes in Post Content to Yes, and Press Save Options

Now, you can use Latex in your both your website and your forum with

[latex] x_2+\int_x^2 dx [/latex]