For questions about MathJax, which is used to write mathematics on this site. (It uses basically LaTeX syntax.)

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How to reproduce the “old” Peano's symbol for set inclusion

In his Arithmetices Principia Novo Methodo Exposita (1889) [see this post Giuseppe Peano used an $\text {"inverted C"}$ for set inclusion (modern : $\subset$). There is a way to "invert" the ...
0
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0answers
20 views

Vertical lines in array not appearing (Chrome)

On the main site, in Google Chrome, the vertical lines of an array made in $\LaTeX$ do not appear. They appear in meta, but not on the main site. Here is a latex array: $$\left[\begin{array}{c|c|c|c} ...
1
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0answers
55 views

using a matrix table for mathematical purpose [duplicate]

I need to know how to use matrices on this site for a mathematical argument, maybe this question was asked a lot, but I couldn't find the answer for this through the site, any link?
-1
votes
1answer
65 views

Need Help Creating Symbols [duplicate]

I am sorry I need to ask this, but how in the world can I insert mathematical symbols into my questions and answers such as lim, integrals, sums, etc. (I'm new)
21
votes
1answer
160 views

MathJax doesn't display in the new profile page

This seems suboptimal: I'm running Mac OS 10.10.3. This happens for me in Safari (8.0.5), Firefox (38.0) and Chrome (41.0.2272.118), although in Chrome I do get a brief flash of equations during ...
4
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2answers
106 views

MathJax contradiction symbol? (\lightning)

I like to use the stmaryrd symbol $\lightning$ for contradictions, but \require doesn't support ...
3
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1answer
102 views

LATEX question about logical symbol

For the "entailment" relation we have $\models$ (\models or \vDash). Sometimes I need "logical equivalence", sometimes symbolized as "=||=". Question : where I can find $\leftmodels$ or one of its ...
9
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0answers
72 views

Latex preview on question title?

Almost every single time I type a question I end up having to go back and edit the title due to no latex preview. Obviously you can write the title in the body first to check it but it's very easy to ...
4
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0answers
66 views

A small hitch when sharing on twitter

If I like the share link to share a question or answer on twitter, the text automatically generated has repeated characters whenever there is latex involved. For instance, here is one such tweet ...
2
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2answers
57 views

Labeling arcs in MathJAX

Is there any capability to label arcs as we may label line segments, i.e., $\overline{AB}$? I can't seem to find anything that allows us to use the tricks I see online within MathJAX.
5
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0answers
124 views

“divide left by right” shown instead of \frac

I was reviewing close votes when I got the following: I clicked on the question, saw the correct version ("divide left by right" replaced by "\frac"), then clicked the "go back one page" button on ...
-1
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1answer
72 views

MathJax help - negative fractions [duplicate]

I just want to know how you write negative fractions because I don't seem to understand why I am not able to make a fraction negative. Is it even possible?
9
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1answer
98 views

Searching for mathematical expressions

I got this question a few years back in an postgrad interview and it had me stumped until the interviewer suggested the trick to it. I solved it again just now on paper and wanted to check my answer. ...
1
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0answers
31 views

MathJax bugged on front page (FireFox)

This question displays correctly when viewed in the /questions page: But in the question queue, the preview is messed up: My guess is that this is a result of cropping the MathJax markup halfway ...
8
votes
1answer
164 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 ...
2
votes
0answers
70 views

Cannot delete my own comment due to latex formatting?

Sorry if this is not the proper place to ask this question, but I cannot find related information from the help pages. I wrote a comment on this post giving some extended and related data to help ...
0
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0answers
56 views

Improper spacing after inline MathJax

The spacing after inline MathJax behaves badly for me, maybe the width of the formulae is calculated incorrectly. On SeaMonkey and FireFox, text following inline MathJax overlaps (or if starting with ...
1
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1answer
56 views

Align environment not working

I answered someone's question, and wanted to use the align environment. For some reason, it's not letting me. The link to the question is below. You can see in my answer that the TeX code is what ...
0
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0answers
67 views

Spoiler-markup broken for multilined display math?

A brief search didn't turn out a dupe, but recently I have found that the spoiler-markup >! doesn't work well with multilined MathJax, especially displaystyle: ...
2
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0answers
61 views

Only view MathJax in preview on button press

Could there be a selection box / button just below the editing box, and before the Markdown Preview to enable / disable the MathJax. When I was editing a question, I was finding it quite distracting ...
-15
votes
1answer
139 views

Enforce $\LaTeX$ in Every Question

The vast majority of low-quality questions I've encountered on this site do not use $\LaTeX$ formatting. Would the site be improved if questions not containing any $\LaTeX$ were simply not allowed? ...
0
votes
1answer
103 views

Is there a difference between $R$ and $\mathbb{R}$? [closed]

Is there a difference between $R$ and $\mathbb{R}$? I'm new to this, some authors use (typically) $R^3$, others $\mathbb{R^3}$. Both I assume mean a cubic real space, or is there an actual difference? ...
5
votes
1answer
147 views

Strange behaviour of text following immediately long MathJax expression

I have noticed this behavior in this post. Here is an example: $|s_nt_n - st| = |s_nt_n - s_nt + s_nt -st| \le |s_nt_n - s_nt| + |s_nt - st| = |s_n|*|t_n - t| + |t|*|s_n -s|$. It behaves the same way ...
2
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2answers
68 views

Large vertical brackets for limits of definite integrals.

How do I make a large vertical bracket for definite integrals like this one? $|_0^t$ Is there a link to a page containing tags for all symbols? I have looked and my page search never lists one ...
2
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0answers
66 views
4
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2answers
95 views

Post with many lines of display math takes up most of the Questions page

Loading the Questions page, my computer displayed this: Notice that a single question with many lines of display math is taking up most of the window. I actually thought I had accidentally clicked ...
2
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0answers
38 views

Is searching a post with latex or MathJax possible?

The title of a post contains latex in Title with the help of which I wish to search for it. How is possible ? There was no luck with e.g., $y''y^3=1$ .
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0answers
23 views

Proper formatting of a question [duplicate]

How do I write the question in mathematical way. using all the symbols? I am not able to enter symbols or matrices or use any standard notation for mathematical function. How do I enter the questions ...
0
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0answers
72 views

\oiint symbol? How does it work? [duplicate]

How do I write the symbol for closed surface integrals? I need a contour double integral. $$ \oiint $$ It doesn't seem to work... only for singles: $$ \oint $$
2
votes
1answer
71 views

Learn math notation for this site [duplicate]

What is the name of the language used to display math on this site, and how do I learn it? Is there a post with the basics? I find myself going to the page source to see how others have typed it. Or ...
4
votes
1answer
107 views

Why do some titles with MathJax go to a new line?

When I look at my answers on my profile page here, some of the titles with MathJax do not appear in a single line despite the fact that there is sufficient space. Some examples are Does anyone know ...
0
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0answers
63 views

What is wrong with the following LaTeX code? [duplicate]

This could maybe be better for the $\LaTeX$.SE. The following $\LaTeX$ does not work: $\left(\left(\frac{a_1}{a_{r+1}}\right)^2+\cdots+\left(\frac{a_r}{a_{r+1}}\right‌​)^2\right)$
2
votes
1answer
80 views

How can I text in between “dollar signs” on MSE.

Suppose I have to write $\sum a_g$ such that $g \in G$ then can I start with "dollar sign" and then write whole thing and end "dollar sign" in last without italicising or any effect on my text "such ...
3
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0answers
104 views

Why use oldstyle numbers? It's inconsistent with MathJax [duplicate]

Writing numbers in the main text produces oldstyle numbers: 0123456789, while typing the same numbers in "math mode" produces modern style numbers: $0123456789$. While I'm a big fan of oldstyle ...
1
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1answer
74 views

MathJax tries to render “side-by-side markdown” when Fast Preview is enabled

When I have enabled "fast preview" in the MathJax context menu "Math Settings $\to$ Math Renderer $\to$ Fast Preview", MathJax will attempt to render formulas in the "side-by-side markdown" comparison ...
2
votes
1answer
113 views

mathjax stops when I'm editing this question

I'm encountering this strange behave of the mathjax-system with this question . Everything is fine if I refresh this page in my browser (Firefox) ; but when I start editing the text then the preview ...
2
votes
1answer
79 views

Repeating decimal sign

Is there a way to type the repeating decimal sign on top of a number on the Mathematics Stack Exchange site? I have a question I want to ask about a repeating decimal and I want to improve the ...
7
votes
1answer
111 views

Personalised $\LaTeX$ commands for users

I'm definitely not the first to think about having the possibility users having personalised $LaTeX$ \newcommands (see e.g. here). But I thought of another way to ...
29
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12answers
2k views

MathJax v2.5 beta released

Today we are entering the public beta phase of MathJax v2.5. This release focused on improving rendering speed and MathML support. The 2.5 release improves the speed of the HTML-CSS output by 30-40% ...
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3answers
368 views

What is the incentive to use MathJax

I've been wondering about MathJax and the site's polcy towards it recently. I am talking about questions which are otherwise good and up to site standards, but are formatted either without MathJax or ...
0
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2answers
158 views

MathJax: Set same font size in fractions

What I'm looking for is that all numbers that are not exponentials have the same font size (the same as the paragraph they are in). Currently when testing this, I try using two fractions within a ...
14
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3answers
335 views

Circumventing displayed equation ban in titles

Using block equations in titles is dissallowed and will be automatically caught. But one can circumvent this ban by using ...
4
votes
0answers
54 views

Inconsistent preview and output of maths in spoiler blocks

I was writing an answer to a question on the main site, and using spoiler blocks as part of the answer. Several of the spoiler blocks include MathJaX with $$ and ...
0
votes
1answer
81 views

LaTeX: newcommand not working?

Image attached: I recently tried using the newcommand but like always it often doesn't render the \int or the integration sign, ...
0
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1answer
48 views

Saving MathJax file drafts

Questions/answers are available here on line. However how do we save them in a separate MathJax directory to read them later off line?
13
votes
1answer
168 views

MathJax Color fights Hidden Text and Wins!

It appears that using MathJax color in a hidden text block "pokes through" the hidden environment. I don't believe this is desired behavior, so I'm reporting as a bug.
1
vote
1answer
65 views

Simple Alignment to the Left [duplicate]

Yesterday I posted a question here followed by a Post Script. How do I align the equations in the Post Script by the "=" signs, just like "someone you know" did when responding to me? The following is ...
7
votes
2answers
288 views

How to draw simple lattice diagrams (MathJax syntax)

I recently asked a question on TeX SE about how to draw lattice diagrams with MathJax (as in, the TeX commands for creating one, once I already drew it on paper and know what it should look like). ...
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0answers
92 views

LaTeX a jumbled mess when flagging as a duplicated

Is it normal for the LaTeX to be a jumbled mess when flagging as a duplicate? In case it isn't all systems, I am on a Linux system with Firefox 34.0.
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2answers
196 views

Ability to View Answers in LaTeX

Is there an option or can one be implemented so that new users like myself can view the "source code" of others answers. Obviously there are many tutorials in which we can find the correct commands, ...