How to use MathJax on the mobile web chat?

We'll be using robjohn's bookmarklet to make mathjax work on your mobile device.

As a matter of fact he's pretty much written a step by step guide for doing so.

1. Copy the text from the box below.
2. Create a bookmark to this (or any) page.
3. Replace the contents of the bookmark URL with the copied text.
4. Edit the bookmark title if you wish.

↓The userscript

javascript:(function(){if(window.MathJax===undefined){var%20script%20=%20document.createElement("script");script.type%20=%20"text/javascript";script.src%20=%20"https://cdnjs.cloudflare.com/ajax/libs/mathjax/2.7.1/MathJax.js?config=TeX-AMS_HTML";var%20config%20=%20%27MathJax.Hub.Config({%27%20+%20%27extensions:%20["tex2jax.js"],%27%20+%20%27tex2jax:%20{%20inlineMath:%20[["$","$"],["\\\\\\\\\\\\(","\\\\\\\\\\\\)"]],%20displayMath:%20[["$$","$$"],["\\\\[","\\\\]"]],%20processEscapes:%20true%20},%27%20+%20%27jax:%20["input/TeX","output/HTML-CSS"]%27%20+%20%27});%27%20+%20%27MathJax.Hub.Startup.onload();%27;if%20(window.opera)%20{script.innerHTML%20=%20config}%20else%20{script.text%20=%20config}%20document.getElementsByTagName("head")[0].appendChild(script);(doChatJax=function(){window.setTimeout(doChatJax,1000);MathJax.Hub.Queue(["Typeset",MathJax.Hub]);})();}else{MathJax.Hub.Queue(["Typeset",MathJax.Hub]);}})();

Just one thing to remember, the userscript only works if you access it from the search bar i.e you type in the name of the bookmark and tap on it. I've made a YouTube video for more clarity.

I hope Javascript enabled on your device.