Questions tagged [mathjax]

Bug reports and suggestions for the MathJax system used to compile basic LaTeX code on the site.

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Why doesn't the prime in $\sum_n'$ sit flush against the summation symbol?

The TeX snippets $\sum_n'$ \sum_n' and $\sum_n^\prime$ \sum_n^\prime should (as with all things TeX, barring trickery) be ...
LSpice's user avatar
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5 votes
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72 views

Missing brackets in $\{x\}$ in drafts, not missing in the final question/product

I am using the latest version of Firefox on Linux (bodhi linux) as well as Mac and Windows. Some $\LaTeX$ is not typeset correctly in MathOverflow: whenever I type a set, like the singleton $\{x\}$, ...
Dominic van der Zypen's user avatar
2 votes
0 answers
73 views

Including a hash character (#) in a math equation causes it to not render (in new-question page)

I want to ask a question about a paper that uses this notation: However, when I typeset it in MathJax with ...
Lawton's user avatar
  • 105
4 votes
1 answer
197 views

A MathJax/LaTeX question

In This question, the following appears: $$[0,2] \times \left[0,4-\sqrt{3}\right] \times \left[0,4-\sqrt{3}\right] \times \mathop{\Large\times}_{i=1}^{k-3}[0,2]$$ Thinking that that last $\times$ ...
Michael Hardy's user avatar
2 votes
1 answer
46 views

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

The following snippet, when compiled as part of a LaTeX document with appropriate packages loaded, would produce a numbered (well, \tagged) equation: ...
LSpice's user avatar
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1 vote
0 answers
163 views

Why is it taking so much longer than it used to for MathJax to get rendered?

These last few days when I click on a posting it sometimes takes more than a minute or even two, for MathJax to get rendered. It used to be a couple of seconds. Is anything being done to correct this?
Michael Hardy's user avatar
5 votes
1 answer
129 views

Editor is not rendering the equations correctly

I haven't asked a question on Mathoverflow or Mathstackexchange but after while I decided to do so I have realized that the editor has got significantly worse. First of all it is significantly slower ...
user127776's user avatar
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0 votes
2 answers
128 views

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

I have this MathJax sequence that I want to format properly in MathOverflow: $$S_m = \begin{cases} \begin{aligned} 1, \quad\text{for m=1}\\ 12, \quad\text{for m=2}\\ 123, \quad\text{for m= 3}\\ ...
Stephen Elliott's user avatar
0 votes
0 answers
118 views

Should the dots used in lambda-calculus notation be typographically treated the way binary relation and binary operation symbols are?

Within this question we find the notation $\lambda f . \lambda g . \lambda x.f(g\ x)$, and that causes me to wonder about a point of LaTeX and MathJax usage. The code ...
Michael Hardy's user avatar
2 votes
1 answer
133 views

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

I know the general phenomenon is that rendering of previews differs from rendering of posts, but, presumably, the goal is to minimise unnecessary discrepancies—and that, in particular, non-esoteric ...
LSpice's user avatar
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2 votes
0 answers
62 views

How do backticks, escaped backticks, and math mode interact, in posts and comments?

I know I can escape backticks, like `. I though I could escape backticks within backticks, as I did in a comment, but it's not working here: a\b`. See a comment ...
LSpice's user avatar
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5 votes
2 answers
188 views

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

I recently submitted an edit to Another notion of exactness: how to refine it, and where does it fit? to replace hand-rolled commutative diagrams with AMScds, since ...
LSpice's user avatar
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3 votes
1 answer
223 views

Writing a bar on top of a number

I want to write a question in which I have a bar on top of a number or letter to represent a recurring digit. however, I can't find any options to write the particular digit, even when I search the ...
Super Coder's user avatar
7 votes
1 answer
186 views

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

@IsabelBeckenbach discovered why \( \) isn't accepted as a math-mode delimiter on MO. I'd always thought it was a design choice, but apparently it's just a mis-...
LSpice's user avatar
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2 votes
0 answers
98 views

Some arrows in commutative diagrams in comments are wrongly interpreted as @-notifications; and a bonus question about CDs on MMO

I left the following comment on Pullbacks in this category of vector spaces are intersections: Are the morphisms in your category isometries? Otherwise, I'm not sure why the category is left ...
LSpice's user avatar
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3 votes
0 answers
221 views

mathcal notation fails to render in Chrome

I recently noticed that "\mathcal" no longer renders. Example post but it renders fine in Safari Chrome: 111.0.5563.146 (Official Build) (x86_64) Safari: Version 16.4 (18615.1.26.11.22) ...
Yaroslav Bulatov's user avatar
4 votes
0 answers
69 views

MathJax in edited question title gets badly mis-parsed in diff view

A recent question received an edit to its MathJax, including in the title. Viewing the diff in the edit history, the edited MathJax in the title gets very badly mis-parsed in the diff view, as shown ...
Peter LeFanu Lumsdaine's user avatar
3 votes
0 answers
144 views

In Safari on macOS, a numbered list beginning with a displayed equation swallows the number

This bug report did not originally mention the platform and the renderer. I originally put them at the end, but it occurs to me that they're more useful up front. Thanks to @DavidRoberts and @...
LSpice's user avatar
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3 votes
0 answers
70 views

AMScd columns not aligning

The code \require{AMScd}\begin{CD} 0 @>>> \mathbf D(C) \\ 0 @>>> M \end{CD} produces $$\require{AMScd}\begin{CD} 0 @>>> \mathbf D(C) \\ ...
LSpice's user avatar
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7 votes
0 answers
173 views

How is TeX rendered in edit summaries?

I recently edited a question Dynkin type classification for 2-dimensional hypersurfaces in non-commutative space, and entered as my edit summary "$<x,y>$ -> $\langle x,y\rangle$" <...
LSpice's user avatar
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4 votes
1 answer
171 views

Double overline renders poorly, except in MathML

A post Mathematical formulation of beam: get stress/strain from forces and momentum uses \overline{\overline{…}}. The results below are mostly from Safari 16.1 on ...
LSpice's user avatar
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3 votes
1 answer
96 views

Integral sign cut off in Safari

I am using Safari version 16.1 with the HTML-CSS renderer. A displayed formula in the post Convergence by parameter involving inf renders as follows: This happens even with extensions disabled, but ...
LSpice's user avatar
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13 votes
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1k views

Did mathcal stop working properly?

Does this question Basic algebra of $\mathcal{O}_0(\mathfrak{sl}_n(\mathbb{C}))$ — Reference request look like this for anyone else?: Those squares are supposed to be \mathcal{O}'s. As far as I can ...
Sam Hopkins's user avatar
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5 votes
1 answer
329 views

What is a supported use of \hfill?

According to Supported TeX/LaTeX commands, \hfill is supported. However, as expected, it doesn't work in ordinary text \hfill ; and using it in math mode seems to ...
LSpice's user avatar
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1 vote
1 answer
81 views

Long post fails to render

In one MathOverflow answer by me, the MathJax code added latest fails to render correctly. Instead, one $ tag is ignored and for the rest on the line, code inside <...
Arvid Samuelsson's user avatar
3 votes
1 answer
120 views

Why is there unexpected space at the beginning of a paragraph in an answer?

In @GabeK's nice answer to @JonBannon's question Each mathematician has only a few tricks, there is unexpected space at the beginning of the third paragraph: My first thought was that there might be ...
LSpice's user avatar
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10 votes
4 answers
305 views

Is it possible to see the source for a comment?

Although this question seems to be new to M.MO, @MartinSleziak points out several related posts on Meta.MSE. I was curious about the diagrammatic magic of @YaakovBaruch's recent comment, and so ...
LSpice's user avatar
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4 votes
0 answers
78 views

Limits on overflowed integrals are too far away from the integral sign

I edited Multiplying divergent integrals using Hardy fields approach to put equations clearly meant to be displayed in display mode. Once I did so, one of the equations exhibited very strange spacing,...
LSpice's user avatar
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4 votes
1 answer
124 views

`\eqref` across posts

While editing @Ruy's answer to How can one define a kind of "determinant" on a reduced group $C^*$ algebra?, I tried to insert an \eqref to the equation ...
LSpice's user avatar
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9 votes
2 answers
640 views

`\intertext` in MathJax

MathJax, at least as used on MO, recognises many multi-line environments, like {multline}, {align}, and ...
LSpice's user avatar
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3 votes
2 answers
271 views

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

I recently tried to edit an old question x-th moment method that had got bumped to the front page for other reasons. The post had an equation that was meant to be, and maybe at one point was, struck ...
LSpice's user avatar
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5 votes
1 answer
253 views

Long display style formulae extend too much to the right with some renderers

In the following screen capture, take a look at the region delimited by the red rectangle: notice how it extends too much to the right, such that a part of it becomes hidden by the yellow page element....
Alex M.'s user avatar
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8 votes
0 answers
121 views

Some but not all LaTeX rendering correctly on tools page

Users with sufficiently high reputation have access to a "tools" page, which I like a lot. However, sometimes I find that the $\rm\TeX$ doesn't render properly. What is particularly puzzling ...
Timothy Chow's user avatar
2 votes
0 answers
62 views

Badges appear to have disappeared [duplicate]

It looks like badges are no longer showing on users when browsing questions/answers: The badges appear while the pages loads, but as soon as the mathjax fully loads, they disappear. Checking other SE ...
caird coinheringaahing's user avatar
4 votes
0 answers
69 views

Occasionally reproducible bug with macro definitions in a draft post affecting macro use in comments

In the course of a discussion involving using MathJax to re-define macros, I couldn't recall if MathJax obeys a \newcommand for an already-defined macro, and so ...
LSpice's user avatar
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3 votes
0 answers
175 views

Braces are not rendered in MathJax in the preview of a question

I am using Firefox 94.0.1, with no user scripts. I have a few add-ons, which I can list if needed, but, since the behaviour does not always occur, they cannot always be interfering. My renderer is <...
LSpice's user avatar
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2 votes
0 answers
399 views

A super easy way to speed up MathJax loading with LocalCDN add-on

I found a very neat way to speed up MathJax execution times and I thought about sharing it with everyone here. Typically whenever I start my browser I have to load up all of these MathJax resources ...
user153330's user avatar
5 votes
0 answers
144 views

How can I see the line length available for long mathematical expressions in posting on MO?

In typing up a question (or answer) on MO, I try to format a long mathematical expression so that it fits in one line. When I meet with apparent success, as shown in the wysiwyg box underneath the box ...
John Bentin's user avatar
  • 2,427
2 votes
2 answers
165 views

No MathJax line wrapping in Firefox

Example: Chrome, for comparison: Happens on Windows 10, both browsers are up to date. Should I use the bug tag? Does anybody else encounter this? Can it be something on my side? After the question ...
მამუკა ჯიბლაძე's user avatar
3 votes
0 answers
62 views

Math-mode formula in comment breaks incorrectly across lines

In the following comment, both summands should appear before the period: The source for the comment is: ...
LSpice's user avatar
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8 votes
2 answers
179 views

Previewed post does not match rendered post when MathJax uses *

In revision 2 of Number of permutations in $S_{a + b}$ with $\operatorname{maj}(\pi) = b$ and $\operatorname{maj}(\pi^{-1}) = b$, I edited an equation that had been manually given the label ...
LSpice's user avatar
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26 votes
4 answers
836 views

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

As we've started discussing, Stack Exchange is planning to redo the editor for all questions and answers across all their sites. As articulated by Emilio Pisanty, these changes will have significant ...
Tim Campion's user avatar
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3 votes
1 answer
112 views

`\DeclareMathOperator` at the beginning of a comment disables some link parsing

In a comment of the form $\DeclareMathOperator\a{a}$Here's a [link](http://mathoverflow.net) and [another link](http://mathoverflow.net) $\a$, neither link is ...
LSpice's user avatar
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-8 votes
1 answer
203 views

Is it allowed to use images for pasting math formula?

Is it allowed to use images to paste math formula in mathoverflow.net ? I think this is high efficiency, and few people search math questions by LaTeX.
244boy's user avatar
  • 101
5 votes
0 answers
87 views

Dollar sign in image title works in preview, but not in actual post

I was just trying to clean up Understanding why $\pi_{3}(N) = \mathbb{Z}_{(2n, n^2)}$? , which was originally almost entirely cut-and-pasted images without any alternate text. For the first image, I ...
LSpice's user avatar
  • 11.2k
0 votes
0 answers
67 views

Potential rendering issue for formulas

when I entered the following $$\pmb{ \frac{d_+^n}{dx_+^n}}:= \left(1, \frac{d^1}{dx^1},\,\dots,\,\frac{d^{n-2}}{dx^{n-2}},\,1\right)$$ I observed that the defined fraction has an unsharp ...
Manfred Weis's user avatar
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4 votes
0 answers
182 views

Preview failing to parse double backslash in large matrices?

A couple of times now, I've been entering a large matrix here or on math.SE and, in the preview window, all the rows appear on a single line. Once the question posts, it displays correctly. I most ...
David E Speyer's user avatar
4 votes
0 answers
104 views

Garbled MathJax in a link to a question with MathJax in the title

The following occurs on my activity page: The question it links to is Is there an explicit expression for Chebyshev polynomials modulo $x^r-1$? and it seems that the MathJax in the end somehow got ...
მამუკა ჯიბლაძე's user avatar
2 votes
0 answers
85 views

Insufficient space following MathJax, but only right after posting

I am using Safari 12.0.2 on macOS Mojave. In my answer https://mathoverflow.net/a/331026 , I see the following: It seems to me that the spacing between the second and third parentheses at the end of ...
LSpice's user avatar
  • 11.2k
4 votes
0 answers
203 views

Wrong rendering in narrow width in Safari

When I view the front page right now in Safari, I see: Notice that the question mark, which the poster properly placed at the end of the equation (see the question (before another edit removed the ...
LSpice's user avatar
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