This repl parses (some) LaTeX matrices.
To view this on TripleLog, click here.
The HTML is a simple input/output to change a string of text.
Add CSS by editing the style.css file that is linked to in the head section or inline edit the style section in the head.
The script.js file looks for any matrices in LaTeX syntax (\begin{matrix}1 & 2 & 3\4 & 5 & 6\end{matrix}) to be converted into a multi-dimensional array.
The parsing is quite simple. Add support for more types of matrices?