Questions tagged [mathjax]

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

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34
votes
46answers
5k 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 ...
6
votes
2answers
1k views

Support for automatic equation numbering and labeling of equations

Mathjax supports automatic equation numbering: http://cdn.mathjax.org/mathjax/latest/test/sample-eqnum.html And equation references: http://cdn.mathjax.org/mathjax/latest/test/sample-eqrefs.html The ...
11
votes
1answer
663 views

Is it possible for me to rotate symbols and operations?

I wanted to rotate $\Box$ $45^\circ$ clockwise to make a diamond. At the time, I did not know there was a diamond command $\diamond$ and $\Diamond$ and $\diamondsuit$ and even things like $\not\...
6
votes
1answer
188 views

pre-viewing mobile answers

This meta-posting is intended to serve as a combination query + feature-request. I do not have a mobile device; I think that this posting needs input from users who do have a mobile device (e.g. ...
3137
votes
37answers
1.1m 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 it and choose "Show Math As > TeX ...
5
votes
1answer
168 views

The command \tilde messes up with subscripts.

Have you encountered a spacing problem with the command \tilde? To show what I mean, let's take a look at $\tilde{f}_{k}$ and $f_k$. Do you notice that the ...
4
votes
0answers
138 views

Faster copying of math formulas

I frequently copy math formulas in posts using Show Math as ▶ TeX commands. This requires control-click plus mouse movement plus command-A and command-C, a lot of ...
5
votes
2answers
81 views

Aligning own operator with limits in MathJax (bug or not?)

I want to create an own operator with limits which would be analogous to $$\sum_{i=1}^k\, \text{or}\, \prod_{i=1}^k$$ in the sense that the limits should be in the exact same position, but there ...
10
votes
3answers
237 views

How do you typeset Dynkin-like diagrams with MathJax?

I just posted a question where I typeset the $E_6$, $E_7$, and $E_8$ Dynkin diagrams using MathJax. It looks alright to me, by I'm worried the alignment will look off to users viewing the post with a ...
1
vote
1answer
62 views

Writing Math equations in MSE. [duplicate]

How do I write the mathematical equations in a question, here on stack exchange? When I try to write a question which involves equations, I get stuck as I don't know how to input those equations... ...
0
votes
1answer
96 views

Mathjax fonts ttf file download link needed [closed]

Long time ago, I was a regular attendee of math.stackexchange and then probably from the meta site, I found a web link (probably github link) to lots of mathjax fonts '.ttf' files for my pc. Those ...
0
votes
1answer
99 views

mathjax not rendering anywhere in firefox

Some days ago I just started to see dollar signs instead of any latex equation what should I do now I use a windows 7 pc and I have switched my browser many times and cleared cache none of them seemed ...
1
vote
1answer
216 views

Enabling TeX in an answer [duplicate]

I searched but didn't find basic information on enabling TeX in an answer. $...$ didn't seem to work.
-1
votes
2answers
273 views

Mathjax in Firefox 5

I am running the latest version of Mozilla firefox and there seems to be some problem: The math font appears dark. It's been happening for the past two days. Before it was working fine. Below is the ...
5
votes
3answers
170 views

How can I typeset blackboard bold numbers?

How can I typeset blackboard bold numbers? What I need is simply something like $\mathbb A$ (\mathbb{A}) but with A replaced ...
3
votes
2answers
113 views

How to type =|| = in MathJax?

I want to type the following symbol (for logical equivalence): Some editors have the command \DashvDash available, but SE's MathJax doesn't. Alternatively, the ...
1
vote
1answer
98 views

$\rm\LaTeX$ align code is not working properly.

Recently I had answered a question. I had used the $\rm\LaTeX$ command \begin{align}...\end{align} but the equations are not perfectly aligned. This is the code I ...
67
votes
6answers
14k views

How to draw a commutative diagram?

Is it possible to draw a (simple) commutative diagram using MathJax? Amscd doesn't seem to work here on math.SE. M(N)WE: $$ \begin{CD} K(X) @>{ch}>> H(X;\mathbb Q);\\ @VVV @VVV \\ K(Y) @&...
2
votes
1answer
60 views

Math numbers rendered as FaceTime phone number

In a recent answer of mine, I noticed that a chain of equations renders correctly on my laptop but incorrectly on iPad and iPhone. The iPad/iPhone treats a particular number as if it is a phone number....
-11
votes
2answers
233 views

Should we write every constant upright?

This post comes out because some of my edit was rejected. I honestly think we should use upright letter for specific mathematical constant. For example I think $\operatorname i$ is the immaginary ...
15
votes
4answers
965 views

How to deal with users consistently posting answers without LaTeX?

The title says it all, is there a way to get in contact which users who consistently post answers without using $\LaTeX$? I've come across a user who does that and (as I had some free time) edited ...
4
votes
2answers
80 views

How do I delete the spacing for the equation below?

How do I delete the spacing between $\lambda_{A}$ and the parenthesis in the equation below? $$\lambda_{A}\left(\bigcup\limits_{i=s}^{t} S_i\right)$$
3
votes
0answers
67 views

Title of linked question messed up when it includes MathJax

I've just flagged a question as duplicate ( it was already deleted) and the link to the original one appears broken - not the link itself but the title: If this helps, the source of the title of the ...
13
votes
3answers
402 views

How to best format the question mark that immediately follows an equation in a question sentence?

Searching for "punctuation after equation" didn't turn up anything here so I'll post this as a new question. This question (on a different site) in its entirety: I was wondering where does the ...
5
votes
1answer
105 views

How to remove space between rows in MathJax? (Clean checkerboard pattern?)

I'm trying to draw a checkerboard (chessboard) pattern, but there is a problem. Is it possible to draw it, such that there is no space at all, between rows and columns? Failed attempt one: (rows and ...
0
votes
3answers
81 views

Chevron in MathJax

How do I write a chevron/circum (^) in MathJax? A backslash doesn't work as an escape character. (Specific context: using x^y to mean XOR as in $x\oplus y$. It's not my choice of notation so don't ...
26
votes
1answer
263 views

Mathjax stops rendering after clicking “An edit has been made to this post”

I have noticed in the last two weeks or so that after clicking the "An edit has been made ..." banner, the mathjax is not rendered. Example (before): (and after): Refreshing the page renders the ...
4
votes
2answers
155 views

How do I label the rows/columns of a matrix in MathJax?

$$ \qquad \quad \ \ 1 \ \ \ \ 2 \ \ \ \ \ 3 \ \ \ \ 4 \ \ \ \ 5 \ \ \ \ \ \\ A = \begin{bmatrix} h & e & l & l & o \\ m & s & e & * & * \\ m & e & t & a &...
1
vote
0answers
47 views

Latex not rendering regardless of browser

As the title says the math formatting doesn't show regardless of the browser or device I'm using. However changing the network with Vpn or mobile network solves the problem for some browsers so I the ...
1
vote
1answer
103 views

How to write h-bar (Planck constant divided by 2 $\pi$) using MathJax?

In this question I wrote $$|\mathbf{k_{scat}}| = \frac{2 \pi}{h} \sqrt{2 m_e e V}$$ where $h$ is the Planck constant. In physics we have h-bar which is $h/ 2 \pi$ but I don't know how to add h-...
1
vote
0answers
89 views

How can I display LaTex with iPad in Chat?

This is the solution in Desktop here, but I want to do it in iPad. How can I display LaTex in iPad's chat?
1
vote
1answer
67 views

How to put two functions in one brace?

This is what I want. Can you please help me?
4
votes
1answer
521 views

Slanted fractions in MathJax

Are slanted fractions supported in MathJax? None of the tricks shown here appear to work.
26
votes
3answers
4k views

What is the relation between Latex and MathJax?

What is the relation between Latex and MathJax? I find this reference very useful for writing questions on mathematics site and I also came across this site for Latex symbols which seems very similar ...
1
vote
0answers
40 views

alignment is not working.

I tried like this. \begin{align} y_{p} &= $\ \frac{1}{D^2+D} (8cos2x-4sinx)\\$ &= $\ \frac{1}{D^2+D} 8cos2x$ -$\ \frac{1}{D^2+D} 4sinx\\ $ &= $\ 8\frac{1}{-4+D}cos2x$ - $\ 4\...
1
vote
1answer
57 views

How to write 'x is not converging to 0'?

To write 'x converges to 0' I can use x\to 0 that produces $x\to 0$. But how do I write "x does not converge to 0'? I need to strike out $\to$. Well cancel package ...
2
votes
1answer
116 views

Does MathJax really not recognize cosec?

I tried to get the trig function cosec in MathJax, but it comes out as $\cosec$. In contrast, it works perfectly well for sec: $\sec$. Of course, one can always use \operatorname{cosec} as a ...
6
votes
0answers
76 views

LaTex underbrace not displaying correctly

For some reason, this is what I'm seeing whenever an underbrace is supposed to be displayed on a post on this website: It looks like some sort of cropped out icon. It's weird because it doesn't ...
1
vote
1answer
99 views

spurious slash causes \, to be misinterpreted

Note: In the submitted version of the question, the comma is no longer being displayed – but when I edit the question, it’s displayed again in the preview. I encountered a strange bug (at least ...
2
votes
0answers
74 views

How do you type Mathjax faster?

I am notorious for asking questions, but I would like to increase my answers rapport. I find it mainly that sometimes the questions on my level of math are taken up by higher math users who can type ...
4
votes
0answers
54 views

MathJax: Bottom entries in a matrix cut off

Has there been any sort of MathJax update? In this answer I see the denominators in the bottom two entries of this matrix are partially cut off. I do not remember seeing this behavior before. I just ...
3
votes
0answers
45 views

What do you do when, in editing with MathJax, what you see in the preview is OK but the result is all messed up?

I tried to edit this answer. When the preview looked OK, I saved the edit, but the actual outcome was a mess. I tried various workarounds, but each time the result, despite a good preview, was worse ...
1
vote
1answer
66 views

Text within curly braces (mathjax).

Hi: I was defining a set with curly braces and put some words in between. For instance: {f: for all x, f < x}. If I enclose all between dollar signs (ds) the text will be poorly legible. Let's ...
9
votes
2answers
324 views

Mathematical Alphanumerical capital I symbol

I'm looking to type this that I saw in a pdf document. However, when I google the mathematical alphanumerical symbols on Wikipedia, it has symbol styles for other letters, but I seems to be reserved....
-4
votes
1answer
59 views

How to write appropriate numbers in non of math, physics and chemistry sites in stackexchange? [closed]

in my question in my ell.stackexchange account, I want that look like user$20445$ instead of user20445. How can I do this? I am not comfortable with these inappropriate numbers.
10
votes
2answers
569 views

How to write math equation with auto numbers

I can write a math equation as below: \begin{equation} \begin{cases} 2x+y-3=0 .... (1) \\ 3x-5y+7=0 .... (2) \end{cases} \end{equation} In this example, the equation number is added manually, is it ...
0
votes
0answers
58 views

Why the definitions of $P(n)$ and $C(n)$ go over the usual borders of the question-box and how to fix this issue?

When you observe this question: Primitive Pythagorean triples and the limit of two counting functions, is this limit equal to $0$ or not? you´ll understand what issues I am asking about how to fix. ...
49
votes
3answers
763 views

Why is there no support for MathJax in chat?

The question Should chat have TeX support was first asked 3½ years ago, and it has been asked at intervals since then. I am not asking that question. I know that chat should have TeX support and ...
0
votes
1answer
75 views

How do I re-enable MathJax after turning it off?

I accidentally turned off MathJax on a comment so I could see the LaTex source, and I don't know how to turn it back on again. I turned it off by right clicking in my browser, but now when I right ...
12
votes
1answer
506 views

Are there any tools to automatically correct math formulas?

I am a person who prefer standard formula, so I often edit the formula to make it look better. But I find most of the mistakes or malformedTeX writing have repeated pattern. For example: ...

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