How do I make a table in MathJax?
You can make a table in MathJax using the following syntax:
``` 
\begin{array}{column specification}
cell & cell & cell \\
cell & cell & cell \\
cell & cell & cell
\end{array}
``` 
The column specification defines the layout of the table, where each column is separated by & and each row is separated by \\. For example, the following code creates a simple 2x2 table with centered columns:
``` 
\begin{array}{c|c}
a & b \\
\hline
c & d
\end{array}
``` 
This produces the following table:
```
a|b
---
c|d 
```
You can adjust the column specification to create tables with different layouts and alignment options. For more information and examples, you can refer to the MathJax documentation on tables: https://docs.mathjax.org/en/latest/input/tex/arrays.html.
That link gives me a 404. Do you have another link that might work?
I apologize for the confusion. The MathJax documentation on tables seems to have been moved or removed. Here is an alternative resource that provides information on how to create tables in MathJax:

https://en.wikibooks.org/wiki/LaTeX/Tables#Using_the_array_environment

This resource provides an overview of the array environment in LaTeX, which is used to create tables in MathJax. The syntax is similar to what I provided earlier, but this resource includes additional information on how to specify column alignments and formatting options.

I hope this helps!