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Questions tagged [mathjax]

For questions about MathJax, which is used to write mathematics on Stack Exchange sites.

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2 votes
2 answers
353 views

Are the formulas not parsing in 64-bit Chrome or is it just me?

I don't see any formulas, just a white "placeholder" on the 64-bit version of Google Chrome. I have this problem at the university (with Chrome 64-bit as well). Is this coincidence or is there ...
4 votes
0 answers
54 views

Matrices do not render in preview

Why does this example: $$ \begin{matrix} 1 & x & x^2 \\ 1 & y & y^2 \\ 1 & z & z^2 \\ \end{matrix} $$ no longer render correctly, at least ...
8 votes
2 answers
327 views

MathJax menu obliterates link menu when the entire link is LaTeX

When the title of a link is entirely in LaTeX, e.g. a question named on the front page such as this one, then there is no way to get the link menu (e.g. to copy the url) since the MathJaX menu applies ...
4064 votes
39 answers
1.8m views

MathJax basic tutorial and quick reference

(Deutsch: MathJax: LaTeX Basic Tutorial und Referenz) To see how any formula was written in any question or answer, including this one, right-click on the expression and choose "Show Math As > ...
5 votes
0 answers
292 views

MathJax preview works incorrectly in Google Chrome.

A couple of times now, I have drafted a question, only for the automatic preview to completely mangle the MathJax. Examples: I expect $\{X\}$ should display as $\{...
0 votes
1 answer
1k views

Request for Hyperbolic $ \sech \,x $ inclusion in MathJax

MathJax does not work for hyperbolic $ \sech \,x$... Can it be now included? Thanks in advance. EDIT1: From user1729's comment suggestion, they work okay: $$\operatorname{sech}(x) $$ $$ \...
45 votes
59 answers
9k views

Formatting Sandbox

Basically the same as Formatting Sandbox in Meta Stack Exchange, but since this and Statistical Analysis are the only two sites (I know) supporting $\TeX$ formatting, I believe we also need one here ...
0 votes
1 answer
139 views

Does this matrix look like a matrix to you? It doesn't to me

$$\begin{pmatrix} a& b& c \\ d & e & f \\ g & h & i \end{pmatrix} $$ Here what I'm seeing What is the work around for this issue?
15 votes
2 answers
527 views

Is there some way to include some default text quickly in a post?

Question. Is there something which would make possible to quickly include predefined text in a new post I start writing. (For example, some bookmarklet for this - with a bookmarklet, one click could ...
1 vote
1 answer
83 views

Online preview display of answers/questions works only in the first round of editing in MSE

It seems I am experiencing a bug when working in MSE for some weeks. When I edit my answers/questions for the second time, the online displayer does not work on any devices (i.e., I cannot see any ...
0 votes
1 answer
113 views

Floor function for fractions [duplicate]

When using \rfloor and \lfloor function for fractions, we obtain the following unpleasant result $$\lfloor \frac n2\rfloor$$ Is ...
1 vote
0 answers
116 views

How to apply the scrolling bar display instead of the text going to the next line

When I write a really large expression in latex, it usually comes in the next line. Like this, $$\alpha\beta=(\frac ab+\frac cd)(\frac bc +\frac da)=\frac ac+\frac bd+\frac db+\frac ca=8 $$ But ...
43 votes
2 answers
4k views

θ vs. $\theta$ - What is preferred? Unicode or MathJax?

In the edit queue, I've seen some improvements of non-MathJax code into MathJax. However, some Unicode characters were untouched and they were actually displaying fine. Are there downsides in using $\...
0 votes
0 answers
55 views

Is there a tutorial on learning how to use formating on Stackexchange Maths? [duplicate]

I would like to post a question but need to express a number of symbols that are not on my keypad. I have a Chromebook. I thought there may be a question on stackexchange or some resource I can use to ...
-3 votes
2 answers
128 views

When Writing a New Question, Continuing with Ask Question from Previous Content, Math Formulas Do not Render, Even after Draft Preview. What to do?

Below is the Example with $x^2$ as it appears in the browser correctly after considerable time. More complicated question texts often do not render at all correctly. Example: $$ x^2 $$ The code for ...
0 votes
0 answers
68 views

How can I write underscript within a line? [duplicate]

How can I write underscript within a line? When if I use double $$, then this is normal, $$H_1 = \bigcup_{\substack{j=1, \ j \neq 1}}^n ( H_1 \cap H_j )$$ But when ...
-1 votes
2 answers
98 views

How to get rid of the space in between name of the function and the parenthesis e.g. in $f\left(\frac{1}{x}\right)$? [duplicate]

I want to get rid of the space between name of the function and the parenthesis argument as in $f\left(\frac{1}{x}\right)$. This space feels unnatural to me. I know a solution to get around this but I ...
9 votes
1 answer
319 views

MathJax is suddenly rendering very slowly and incorrectly in the preview in Firefox

As of today, if I try to edit any of my answers or questions on the main site in Firefox, MathJax renders very slowly and incorrectly in the preview. Some lines (which look fine before I click "...
0 votes
0 answers
51 views

Difficulties with displaying set signs

In the following question I recently asked, I wasn't able to the display the symbols denoting sets in mathematics: {, and }. Usually, I write them by putting ...
0 votes
0 answers
78 views

How do I write mathematical equations on this site? [duplicate]

I can't find anything about this on the help page 😔. So , how do people exactly write out these complex looking integration problems on a phone? Is this the "mathjax" thing people talk ...
0 votes
0 answers
60 views

How to write a small "dash" in superscript using MathJax [duplicate]

Specifically, I am trying to write this: Ignore whether the term is mathematically correct or not. Can someone help?
3 votes
1 answer
57 views

Malformatted parentheses

Update: StackExchange is still using MathJax v2.7.5, while the current release is v3.2 and has corrected some of this sort of rendering error. So this report may not be of interest to anyone. Davide ...
45 votes
5 answers
15k views

Do we have an equation editing HOWTO?

I see other posters writing beautiful integrals and quotients within quotients and matrices and sigma summations and and and... is there a guide for that? Edit: Trying Rahul's answer... $\mathfrak{G}...
-1 votes
1 answer
94 views

How to write mathematical equations with automatic line numbers in Stack exchange editor [duplicate]

Here is the equations with automatic line numbers obatined in texstudio How can I write same in latex editor in Mathstackexchange?
2 votes
1 answer
139 views

Why MSE does not support display mode using "\[...\ ]" and the "\diag"

In $\LaTeX$, it is not recommended using $$... $$ for display mode formulas, and \[...\] is more recommended. But it seems ...
2 votes
0 answers
146 views

Why { } doesn't work any more in Latex?

Any idea why $\{$ or $\}$ doesn't work anymore in latex on Math Stack ? (it seems to work here on meta however) When I write ...
0 votes
2 answers
259 views

What is this font for the numbers?

I recently commented on a question and I used the proper MathJax formatting for the numbers and letters: Some minutes later my net became a little laggy and I refreshed the page. Then I lost my ...
-4 votes
1 answer
209 views

Defining common sets for LaTeX mode

When one provides an answer that requires LaTeX, which is almost any answer, every time a set is used, it is necessary to fully type \mathbb{Z}. For example, $\...
2 votes
1 answer
59 views

Why are not table headings rendering correctly with embedded math here on Mathematics Stack Exchange that Render Fine on Stack Exchange Electronics

I have table headings here: How is it Possible to Optimize the Shichman-Hodges Slope Parameters from the Left and Right using Least Square Linear Regression Approaches That I copied and pasted from my ...
3 votes
0 answers
146 views

MathJax in comment looks like nonsense, what's going on?

In this question, I have added a comment: $(a-p)^2+(4-a-q)^2 = a^2-2ap+p^2+(4-a)^2-2(4-a)q+q^2= a^2-2ap+(4-a)^2-2(4-a)q+1= ...$, does this help? But is looks like this: For your information: I'm ...
2 votes
1 answer
154 views

Why doesn't MathJax show up immediately?

When we reload a page with MathJax in it, the math format is like this for a second: After a second it becomes the desired MathJax. Is the intermediate format in Sans-Serif? Why doesn't MathJax show ...
3 votes
1 answer
1k views

Syntax for writing a function defined by cases [duplicate]

Suppose we want to write about a function in a question that is defined by cases. In our note books we generally write "$f(x) =$" and then we give a big curly left bracket, and then define various ...
2 votes
0 answers
77 views

MathJax doesn't work anymore in questions

Only very recently, I noticed that MathJax does not work correctly in questions. For instance, set brackets are not displayed any more: $\{1 \}$ If I post the same as an answer, it works correctly. ...
14 votes
3 answers
2k views

Chrome doesn't display some symbols

Specifically, I cannot see any \mathcal symbol. The \mathbb symbols are also in a very weired font. Here are some examples and what I see on my browser: $$\mathcal{A},\mathcal{B},\mathcal{D},\mathcal{...
2 votes
2 answers
239 views

How to write letters with a slash on it?

How do I write letters like the following in mathjax?
-3 votes
1 answer
144 views

How to write limits with single dollar signs?

When I want to write limits with single dollar signs the index ($x\to n$) goes after the $\lim$ sign: $L=\lim_{x\to 0}f(x)$ But when using double dollar signs the index (correctly) goes below the ...
3 votes
0 answers
163 views

\{, \}, \| and \\ need an extra backslash to be rendered correctly in math when composing a new question in MSE.

When composing a new question iver in math.stackexchange, some symbols need an extra \ (backslash) to be rendered correctly: ...
3 votes
0 answers
115 views

How can we draw kernel diagram in the Math Stackexchange?

I don't know I can ask this kind of question here. Anyway, I propose a question. How can we draw next type commutative diagram ? My scope of ability of drawing commutative diagram is for example as ...
3 votes
1 answer
153 views

Edit Recent Posts to Display HTML-Tables with Markdown

Users have been using $\rm\LaTeX$'s array environment for displaying tables. For instance, in the MathJax Tutorial's "Table" section, ...
0 votes
0 answers
106 views

Mathjax integrals displaying incorrectly

On my display the integral display too small and too far down. I see this on every integral displayed on the site. $$ \int f(x) dx $$ which is rendered to $$ \int ...
19 votes
4 answers
2k views

How to copy mixture of text and latex formulas in a comment?

Okay, I might sound lazy. When trying to copy mixture of text and latex formulas in an answer, it is always easy. I can simply click "edit" and copy the source. But when trying to do the same in a ...
0 votes
1 answer
133 views

Defining New Commands Renders As Empty Space

How do I define new commands at the top without creating multiple spaces before the first character? Also, is it just my browser, or is the rendering engine on StackExchange much slower than on ...
2 votes
1 answer
142 views

Misformatted parenthesis in exponent

The formula $$\begin{align} \lim_{x \to 0} (\cos x)^{\cot x} & =\lim_{x \to 0} ((1+(\cos x-1))^{\frac{1}{\cos x -1}})^{(\cos x -1)\cot x}\\\\ … renders like ...
0 votes
0 answers
102 views

How to avoid draft formatting issues that are only solvable with a save of the question (before the question is finished for publication) [duplicate]

The solution for Firefox now is to install the SiteMacro Extension for (Ubuntu) Firefox, and to have the macro map to the edit button. Each time now that the site reloads, it automatically goes into ...
0 votes
1 answer
149 views

I am having trouble formatting the formula for a quoted vector magnetic potential inside and outside a shell of radius R with charge density sigma

I am having trouble formatting the following formula as a reference to MSU's result for the magnetic field inside a spherical shell and the vector magnetic potential outside the magnetic shell. The ...
1 vote
0 answers
93 views

Having trouble formatting quotations that have $\pu{1.0 Kg}$ as an example or just going to the next line also

I was encountering a formatting issue when writing one of my articles here that I will try to reproduce and summarize here: When I quote text and I want to embed units, I have formatting issues, ...
0 votes
1 answer
108 views

Mathjax is corrupted when I post an answer. [closed]

I have noticed problems when posting on Math StackExchange recently. Mathjax, whether posted by me or by others comes out garbled. Usually, all is well when I refresh the download. Most recently, ...
17 votes
1 answer
2k views

$\mathbb Q$ looking odd in my browser [duplicate]

Did MathJax get an update? Or something wrong in Chrome? In a question on $\mathbb R/\mathbb Q,$ the \mathbb Q seems way bolder than the $\mathbb R,$ and looks ...
10 votes
1 answer
1k views

Why using \mathcal command produce a square? [duplicate]

My computer is a MacBook Pro, using the 13.0 version (Ventura), and I'm using Chrome. See for example or that
-29 votes
2 answers
950 views

Three strike rule to using MathJax

I believe one problem with math.stackexchange is the lack of discipline by newer users when it comes to using MathJax. Let me elaborate. Much too often, one can see a question posted by a user that ...

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