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26 votes

Is it OK to abuse Mathjax for emphasis?

I agree that text formatting should be accomplished with Markdown if at all possible. Since Markdown is used across Stack Exchange, there will generally be better support for proper rendering across ...
Nate Eldredge's user avatar
18 votes

Which Latex / MathJax features do we need or want to have supported on the site?

Need: Most importantly, a true preview which shows me exactly what I have written and which I can look at without affecting my LaTeX. Support for at least the symbols in standard LaTeX and amssymb (...
David E Speyer's user avatar
17 votes

Which Latex / MathJax features do we need or want to have supported on the site?

This is not an answer expressing a preference, but one giving some resources for people to consider. Intmath.com made a Speed Comparison Test between KaTeX and MathJax. MathOverflow is currently ...
Willie Wong's user avatar
  • 38.4k
13 votes
Accepted

Numbering and cross referencing of equations in questions and answers

MathJax supports manual numbering using $$\tag{…}$$, as below: $$\tag{1}\label{grz}\Box(\Box(p\to\Box p)\to p)\to p$$ $$\tag{1}\...
Emil Jeřábek's user avatar
12 votes

Would disallowing displayed equations ("double dollars") in titles be useful?

I understand the sentiment to have this blacklist, but I don't think it's really important for MathOverflow to have it. Very few questions have ever had $$ in their ...
user642796's user avatar
12 votes
Accepted

Is it possible to see the source for a comment?

One approach would be to use the MathJax contextual menu to select the "Plain Source" renderer, which will show the TeX commands rather than typeset expressions. That means you would not ...
Davide Cervone's user avatar
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

How does one type mathematical formulas on this site?

This site uses MathJax - which is a library which for displaying mathematics in web browsers. The syntax is basically LaTeX, so if you are already familiar with TeX or LaTeX you should be fine. (It is ...
10 votes
Accepted

What's the point of having an *MO* chat without LaTeX enabled?

MathJax in chat You can find some information on MathJax in chat in the following posts from Mathematics meta: Should chat have TeX support? You can find in an answer a bookmarklet which you can ...
Martin Sleziak'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
9 votes
Accepted

Repeated TeXifying of question titles

The user has been contacted by a moderator. Please advise if the behavior persists.
Todd Trimble's user avatar
  • 52.6k
8 votes
Accepted

`\intertext` in MathJax

No, MathJax doesn't have an implementation \intertext, as MathJax's internal format is MathML and there is no natural way to accomplish it within the MathML that ...
Davide Cervone's user avatar
8 votes
Accepted

`\eqref` across posts

Originally posted as a comment - expanding to an answer, following the request from the OP in a comment. After a recent edit, the post renders correctly with ...
Martin Sleziak'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
  • 34.7k
7 votes

Is it OK to abuse Mathjax for emphasis?

I think the question is too emotionally laden to present the problem correctly. To me it is like "All the preprints use Knuth's computer modern font. How dare we change that?". The use of the word '...
Gerhard Paseman's user avatar
7 votes
Accepted

What is a supported use of \hfill?

MathJax doesn't have the idea of stretchable glue that TeX uses to implement \hfill, so it can only be used in limited situations in MathJax, namely at the ...
Davide Cervone's user avatar
6 votes

FAQ on typesetting of formulae hard to find

One could make the argument that someone unfamiliar with LaTeX probably won't have the requisite background to contribute meaningfully in this site. Granted, there are some peculiarities with MathJax. ...
user642796's user avatar
6 votes
Accepted

One number on top of another with mathjax?

Like this: $\begin{eqnarray*} & 682 \\ -&426 \\ \hline \end{eqnarray*}$ $\begin{eqnarray*} & 682 \\ -&426 \\ \hline \end{eqnarray*}$ For general $...
Bjørn Kjos-Hanssen's user avatar
6 votes

Triangle commutative diagram does not work here at MO

Added in 2022. The website mentioned below does not work now - so this is no longer an option. (It seems that it has been down for some time. And the corresponding GitHub repository seems to be ...
Martin Sleziak's user avatar
6 votes
Accepted

MathJax equivalent of `<strike></strike>`

Yes, there is \require{cancel}\cancel{1+1=2}$$\require{cancel}\cancel{1+1=2}$$ and ...
Calvin Khor's user avatar
6 votes
Accepted

Double overline renders poorly, except in MathML

StackExchange hasn't upgraded the version of MathJax that they are using in quite some time. They are using v2.7.5, which is more than 4 years old. The current version is 3.2.2, which handles the ...
Davide Cervone's user avatar
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
5 votes
Accepted

Triangle commutative diagram does not work here at MO

This is a community wiki answer made explicitly for testing. $$\require{AMScd}\begin{CD} A \\ @VVV \\ B \end{CD}$$ $$\require{AMScd}\begin{CD} A \\ @VVV \\ B \...
5 votes

Is it OK to abuse Mathjax for emphasis?

Once typographers are allowed to run amok, there is no way back to normality. For it'd be only a question of time for multi-coloured flashing parts of text, and what not, to start to appear. ...
Dima Pasechnik's user avatar
5 votes

Is it possible to use tikzcd code in MO posts?

To the best of my knowledge the only type of commutative diagrams supported by MathJax is AMSCd. Some info on commutative diagrams can be also found here: How to draw a commutative diagram? There is ...
Martin Sleziak's user avatar
5 votes

How does one type mathematical formulas on this site?

You can find a very basic introduction to MathJax (LaTeX) syntax in the other answer. Here are links to some further resources that might be useful. (Some of them are not specifically about MathJax, ...
5 votes

The math! It's overflowing!

The problem is caused by the fact that if a comment contains many consecutive characters without a space, the Stack Exchange software inserts invisible unicode character (\unicode{x200C}\unicode{...
Martin Sleziak's user avatar
5 votes
Accepted

Long post fails to render

I think it was just an oversight - unpaired curly brackets. Putting $V_{i(g)(\kappa)}^M=V_{i(g)(\kappa)}^N$ $V_{i(g)(\kappa)}^M=V_{i(g)(\kappa)}^N$ works as ...
Martin Sleziak's user avatar
5 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

MathJax accents in Safari 10.1

The problem was introduced in the upgrade from Safari 10.0.3 (OSX 10.12.3) to Safari 10.1 (OSX 10.12.4), so I would think it unrelated to the switch in MathJax hosting. It seems to be an issue with ...
Carlo Beenakker's user avatar

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