Project Euler Forum

Is it specifically the caret you're trying to display? For the caret you can use the following:
Which will render as $\texttt{a\^{ }b}$. It tricks MathJax into putting the caret over the space (between the curly braces).

But if you're just looking for a way of having a block of inline text to have some subtle visual separation/standout I can do that. Would you want the text block to disable other BBCode like the [text] block? If so, I could add an attribute to the [text] block, like [text=pop] to add a subtle border, padding, and maybe a slightly different background.

Hi, there's something wrong with the TeX formatting in [link]https://projecteuler.net/post_id=226289[/link]

Looking at the source by quoting, the $\surd$ command is formatted to be below the line!

It's a recognised issue that should be addressed in the next release (4.1.1).
https://github.com/mathjax/mathjax/issues/3468