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11 votes
Accepted

A MathJax/LaTeX question

You need to vertically center the symbol on the math axis: \mathop{\vcenter{\Huge\times}} $$ [0,2] \times \left[0,4-\sqrt{3}\right] \times \left[0,4-\sqrt{3}\right] ...
Emil Jeřábek's user avatar
10 votes
Accepted

Having the MO Mathjax parser recognise \( \) is a regex away

The real issue with using \(...\) as math delimiters is the interaction with StackExchange's Markdown engine, since Markdown uses ...
Davide Cervone's user avatar
8 votes
Accepted

Writing a bar on top of a number

To give the question an answer so it can be accepted: you can use $\overline{...}$ to get a bar over any letter or digit or group thereof.
David Roberts's user avatar
  • 33.3k
6 votes
Accepted

Why do `* *`s and `** **`s stop being recognised at some point, and how can I fix the resulting inadvertent vandalism?

The post "HTML comments break formatting from that point" on Meta Stack Exchange mentions that problems can be caused by an incorrectly entered HTML comment ...
Martin Sleziak's user avatar
4 votes
Accepted

MathJax ignores a `\tag` in an `{equation}` containing a `{split}`

This was fixed in version 2.7.8 of MathJax, but StackExchange is still using version 2.7.5 (and the highest version 2 release is 2.7.9). I understand not moving to version 3, but I don't know why SE ...
Davide Cervone's user avatar
4 votes
Accepted

Why would an equation render on preview and in an external TeX compiler, but not in post?

This is a CW answer - for experimenting. Here is the equation copy-pasted from the (current revision of the) post: $$ U_n = M\left(c-\frac{1}{n+2}\right)-M\left(c-\frac{1}{n+1}\right)\label{1}\tag{$U$}...
3 votes
Accepted

How is it possible to format a right-aligned sequence that has single and double digits so that the alignment is correct?

The way you are supposed to use alignment environments like aligned, cases, align, etc., is ...
Emil Jeřábek's user avatar
1 vote

Why do `* *`s and `** **`s stop being recognised at some point, and how can I fix the resulting inadvertent vandalism?

A sandbox for testing. If you update this, please update the indented block as well as the non-indented block. ...
1 vote

Editor is not rendering the equations correctly

I can't reproduce the problem. The following renders as expected for me, also in preview: presheaves on $Top$ denoted by $p:\mathcal{F}\rightarrow C\mathcal{F}$ such that $i_0^*\circ p = id$ and $i_1^...
LSpice's user avatar
  • 11.1k
1 vote

How is it possible to format a right-aligned sequence that has single and double digits so that the alignment is correct?

Try & and \phantom{0}: ...
fedja's user avatar
  • 59.3k
1 vote

`\intertext` in MathJax

Reply to @LSpice 's comment: (Sorry, I don't have enough rep to comment, so posted as answer) I tested your example in mathml tester in Firefox, colspan and ...
hbghlyj's user avatar

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