Questions tagged [mathjax]

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

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-2
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0answers
93 views

Shouldn't MSE render the \abs{} function?

When one is using $\rm\LaTeX$, it's common to use the \abs{} function (via the \physics package) in order to write some expression inside the absolute value function. However, MSE doesn't support the \...
0
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1answer
54 views

Inserting math, brackets etc [duplicate]

I'm kinda new here. May I know how I can insert math here? For example, matrices and the Greek alphabet? Sorry if it's a stupid question, I'm honestly clueless.
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38answers
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 &...
3
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3answers
109 views

How to put 2x2 matrices in the denominator and numerator using MathJax?

Answer(s) to Reciprocal vectors of a two dimensional lattice without borrowing from the third dimension suggest a way forward in figuring out how to divide 2x2 matrices in a straightforward way. In ...
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2answers
79 views

How to write roots other than square roots in MathJax?

I can't find how to write roots other than square root using MathJax. There doesn't seem to be anything about it on the legendary MathJax basic tutorial and quick reference These are my best attempts, ...
34
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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 ...
15
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4answers
600 views

How to properly align a fitch style proof on Math Exchange?

Is it possible to align a fitch style proof? When I say align, I mean instead of: $$ 1: \forall x [P(x)] \rightarrow Q \quad \text{Premise} \\ 2: | \lnot \exists x[P(x) \rightarrow Q] \quad \text{...
-5
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2answers
617 views

$\rm\LaTeX$ shortcuts

Do we want to add shortcuts for common $\rm\LaTeX$ commands? Examples: \ra, \la, \Ra etc. ...
2
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0answers
43 views

Could we have predefined macros for naturals, integers, reals, and the like? [duplicate]

Request in title. Could we have site-wide predefined $\LaTeX$ macros \N, \Z, \Q and ...
7
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0answers
53 views

Saving Mathjax generated SVG

This concerns rendering SVG in Mathjax via the context menu "Math Settings" -> "Math Renderer" -> "SVG". This works fine in the browser but I'd like to save a .svg ...
4
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1answer
71 views

In MathJax, how can one write a double underscript on a displayed summation sign?

Typically, summation is over some range, such as $k=1,...,n$, which might be written $$\sum_{k=1}^nx_k\quad\text{or}\quad\sum_{k=1,...,n}x_k.$$But suppose that the range is restricted by a further ...
2
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0answers
72 views

Embedding tikzcd diagrams

I know some tags are not supported, and some of them will likely never be (I have the <table> tag in mind). However, it is sometimes useful to embbed ...
4
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0answers
72 views

Erroneous MathJax rendering

Look at the words "I am not sure" in the editing window and in the preview in this image. In the editing window they come after the expression that is shown following them on the next line ...
2
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1answer
87 views

Mathematical symbols in Mathematica and Stack Exchange

How may I transfer mathematical text (with symbols, etc.) from Wolfram Mathematica into Stack Exchange?
15
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2answers
545 views

Can I make this little table of diagrams better than ASCII graphics?

In my question How can one recognize when two Coxeter diagrams represent the same uniform polytope?, I have a simple table into which I want to put three little Coxeter diagrams. Here are the three ...
-5
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2answers
251 views

When a very short subject line is too long

Showing $\frac{|\overrightarrow{A_1B}|}{|\overrightarrow{A_1C}|}\frac{|\overrightarrow{B_1C}|}{|\overrightarrow{B_1A}|}\frac{|\overrightarrow{C_1A}|}{|\overrightarrow{C_1B}|}=1$ implies $AA_1$, $BB_1$,...
8
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1answer
928 views

MathJax not working, Firefox 36.0.4

As the screenshot shows, my MathJax is not rendering and there's no word from the console (other than a bunch of probably-irrelevant CSS errors I didn't show). I restarted with add-ons disabled and ...
19
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2answers
4k views

How can I put a table here?

For example \begin{tabular}{|c|c|c|c|} \hline 1& -1 & 1 & -1 \\ \hline & & &\\ \hline & & &\\ \hline & & &\\ \hline. \end{tabular} Does not work ...
2
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0answers
57 views

MathJax not rendering and only showing the latex code

it is very old problem and here is a screenshot of the problem
6
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2answers
300 views

Rendering MathJaX: cropped formulas

In my recent Question Limit without de l'Hôpital: $\lim _{x\to 0\color{red}{\boldsymbol -}}\left(1+x^3\right)^{\frac{1}{\left(x^2+1\right)^4-1}}$ there is a problem of visualization. I have ...
0
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1answer
69 views

Quicker command for fraktur letters than \mathfrak?

There is a shorthand way of writing letters in blackboard bold: instead of using \mathbb, we use \Bbb. This substantially sped up my time writing questions and answers on math.SE. In the course of ...
2
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0answers
65 views

problem with mathjax spacing in comments

In the last few months, I have noticed the following anomaly in the way that mathjax is being rendered in comments: Currently $\$ a\backslash, b\$ $ seems to be rendered as a,b. What is desired is ...
5
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1answer
107 views

There is a MathJax command for the GCD. What, if any, is the command for the LCM?

There is $\gcd(a,b)$, written as $\gcd(a,b)$. How I can write lcm(a,b), the command $\lcm(a,b)$ gives an error.
0
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1answer
105 views

Is using MathJax for questions required after having other users edit my questions already multiple times?

I am well aware that you do not necessarily have to write questions in MathJax if you are not fluent with this kind of language. However someone recently pointed out that I should really be learning ...
6
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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
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1answer
719 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
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1answer
189 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. ...
4
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1answer
170 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
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0answers
140 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 ...
4
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2answers
87 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 ...
9
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3answers
260 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
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1answer
69 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
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1answer
100 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
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1answer
128 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
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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 ...
4
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3answers
195 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
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2answers
127 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
103 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 ...
69
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) @&...
1
vote
1answer
62 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....
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2answers
238 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
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4answers
967 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 ...
3
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2answers
83 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
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0answers
72 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 ...
12
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3answers
440 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 ...
4
votes
1answer
111 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
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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 ...
25
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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 ...
3
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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 &...

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