Questions tagged [support]

A request for assistance with one of the site's features.

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3718 votes
37 answers
1.4m 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 >...
316 votes
13 answers
88k views

How to ask a good question.

How to ask a good question. This thread has advice on the following aspects of writing a good question on this site. Each item in this list links to an answer below about that specific aspect of ...
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  • 69.1k
124 votes
17 answers
18k views

Sandbox for drafts of long, complex posts

This sandbox is intended for saving drafts of long, complex posts, especially posts whose composition takes a long time. It serves to localize to one thread the front-page "bumps" caused by edits to ...
90 votes
3 answers
2k views

STOP! Look and Listen.

I was reviewing a bit and ran into a bad answer. Usually I open the question to see it within context (I know this is not the supposed course of action) and so I did. The bad answer I was reviewing ...
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  • 30.7k
75 votes
7 answers
17k 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) @>{...
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  • 16.6k
69 votes
3 answers
4k views

Common acronyms used on main and meta

When I first joined this site, I had to figure out “OP” from context. Finding out what “CW” means was much easier, as it is often spelled out in full. CFV I had to be point-blank told about. It seems ...
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  • 4,330
66 votes
2 answers
10k views

Why did my reputation suddenly increase by 1500 points?

Yesterday my reputation on Math.SE was around 2450 points. Today I logged in and I saw, unexpectedly, that it is 3913. I have not gained any reputation since yesterday, according to my profile page. ...
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  • 4,776
62 votes
1 answer
2k views

What does the number "people reached" on the profile page mean?

I have just noticed that my activity page claims that I have "reached" 809k people. Since this is clearly ludicrous, I suppose "people" means actual people counted with high multiplicity. That's okay, ...
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60 votes
5 answers
2k views

How to search on this site?

When using this site, it is quite important to be able to find posts on this site which might be related to the question I am interested it - both to avoid duplication (i.e., not asking again ...
51 votes
1 answer
4k views

"Contest problem" policy

What is our policy concerning contest questions on the Mathematics Stack Exchange? Why do we have a policy? What is a contest question? How we deal with on-going contest questions? I see a question ...
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  • 69.1k
49 votes
2 answers
17k views

How to search for a formula/expression

Suppose I want to search for instances where an expression similar to $x_n^2-x_{n-1}x_{n+1}$ shows up. How would I do that? I suppose the question goes beyond searching MSE. Are there search engines ...
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  • 3,543
44 votes
5 answers
13k 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}...
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  • 649
43 votes
1 answer
1k views

How does the voting in the election work?

How does the voting in the elections work? I know that we elect two moderators and I see that I can rank all the candidates. How does this work exactly? What are the implications of ranking more than ...
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  • 40.9k
38 votes
52 answers
6k 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 ...
37 votes
3 answers
2k views

Mathjax 2.5 alpha

We have deployed the latest Mathjax 2.5 alpha on Math.SE. As with any beta release please post an answer to this question if you find any issues. We will be monitoring this thread closely along with ...
35 votes
1 answer
1k views

Mathjax 2.2 beta

UPDATE: Mathjax 2.2 final has been released. We have deployed the latest Mathjax 2.2 beta on Math.SE. As with any beta release please post an answer to this question if you find any issues. We will ...
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35 votes
1 answer
1k views

Capture the Flag: FAQ on Flagging

What is flagging for moderator attention? How does the flagging process work? What are the different flags, and what are they useful for?
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  • 371k
34 votes
0 answers
1k views

Guidelines for context edits and rewrites

Suppose you come across a question that has been closed for lack of context, has high quality answers, and on its way to being deleted. Can you save the post by editing it to include more context? ...
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32 votes
1 answer
37k views

Why is [Math Processing Error] all over the place today?

I'm seeing [Math Processing Error] all over this site today. Is there a bug or is this problem unique to me? How do I fix it? Thanks.
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  • 3,155
31 votes
1 answer
2k views

Cereal downvotes [duplicate]

It would appear I have a serial downvoter, probably based on my comments at Vector field on an odd sphere Anything to be done? How very odd. I put Cereal on purpose. I do not think it confuses the ...
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  • 131k
31 votes
3 answers
993 views

Writing answers works very slow

I don't know if this is a bug. Maybe it's just my operating system (ubuntu 10.10), computer, or browser(Mozilla 3). As of yesterday, I can write answers very hard. I noticed that before, the latex ...
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  • 22.4k
31 votes
1 answer
1k views

Reputation decrease citing "User was removed"

I look at my account reputation changes, and noticed several negative reputation changes, both citing 'User was removed'. Is this behavior documented/explained anywhere. I would appreciate some ...
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  • 68.3k
30 votes
4 answers
2k views

I am a student and have reached my limit of 50 questions per month what do I do?

I am a student and have reached my limit of 50 questions per month. I am poor and can't afford a math teacher and have been using this site to teach me a lot of new things so that I can get better at ...
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30 votes
2 answers
11k views

MathJax: How to number and reference multiline equations?

I'd like to number multiline equations and reference them, à la MathJax's Align and Gather environments. Can this be accomplished? If so, how?
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  • 10.5k
30 votes
2 answers
2k views

Feature request: user script or option to turn off instant MathJax rendering

In view of the nearly unbearable slowdowns I experience while composing answers (both in Safari 5 and Firefox 5 on OS X 10.6.7) since June 21/22 I would most welcome a possibility ...
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  • 74.5k
30 votes
1 answer
2k views

How to center a figure in the post?

In this post here, the figure appears on the left side. I tried to center the figure but I could not do so. Is there a way to center figures/text in a post?
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30 votes
1 answer
497 views

MathJax CDN (cdn.mathjax.org) will be shutting down

The news that MathJax CDN shutting down on April 30, 2017 was recently brought to my attention. I have updated ChatJax to use the alternate server given in the MathJax post. It seems to work well, ...
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  • 327k
29 votes
1 answer
3k views

Using TikZ on math.stackexchange

The title pretty much says it all: How can I use TikZ when writing my math questions on this site? I have written out my question in LaTeX using the TikZ and it took me quite some time, now I ...
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  • 5,239
29 votes
3 answers
399 views

Reviewing Suggested Edits

As part of the mod tools, there is a tool to review and approve suggested edits. The "review suggested edits" shows something like below which is not of much help to review and approve the edit. It ...
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27 votes
5 answers
792 views

What if the duplicate has a better answer than the original?

I have recently asked a question (The original did not turn up in my search): Show that there are infinitely many powers of two starting with the digit 7 which was marked as a duplicate of: Starting ...
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27 votes
5 answers
16k views

Catalog of limits

WARNING: This post contains hundreds of mathematical formulas. Do not open it on devices, where rendering of MathJax is slow! For more comprehensive catalog see https://mathindex.wordpress.com (it ...
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27 votes
1 answer
456 views

What's going on with the UI?

Is there a medium/long-term plan for a total revamp of the SE user interface? I noticed the list of recent badges was removed, and now the top bar is completely changed (access to the meta site link ...
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  • 371k
25 votes
2 answers
825 views

Is this an answer only site for people who just started here?

I'm a new user. I don't understand why I can't tell users what is wrong with their work. You can only do that when you have reached reputation=50? I also don't understand anymore what is meant by ...
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  • 3,247
25 votes
1 answer
1k views

How to find questions originating from papers?

What is a reasonable way to find questions which are related to mathematical papers? The motivation to ask this was a recent post mentioning that: However the focus of this site seems to be ...
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25 votes
1 answer
382 views

How to disable the helping duck from popping up?

This is a minor thing, but this duck popping up in the bottom-right corner whenever you do anything catches your attention, for nothing, this can get really annoying. Is there any way to disable it? ...
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24 votes
2 answers
816 views

Is cross-posted forbidden/discouraged on Stack Exchange sites? If so, why?

Math people: I have never posted a question to Mathematics meta before and I hope this is the right thing to do. Yesterday I posted a question to Math Stack Exchange (is there a name for this ...
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  • 7,622
24 votes
1 answer
864 views

What happened on April 2017?

I used the query in this answer to see the number of edits per month and I was fairly surprised as April 2017 had $86,444$ edits. The graph of edits per day is even more surprising as one day had $55,...
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24 votes
2 answers
729 views

How to ensure candidates pre-commit for next election

This is a follow up to How can we best judge who has the skills to be a moderator? . Two moderators have recently resigned, and they say there will be another election soon. Some recent elections had ...
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  • 77.9k
24 votes
1 answer
627 views

Removal of the "too minor" reason for rejecting an edit

The edit review system appears to have been updated, and among the changes is the removal of the "too minor" reason for rejecting an edit. Does anyone know why this has been changed? Are minor edits ...
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  • 21.7k
24 votes
1 answer
260 views

Preview of a proposed edit?

Is there a way, when reviewing a proposed edit, to preview it exactly as the edited text would appear on the site? I maybe wrong but I think that at Tex/LaTeX Stackexchange you have the option to see ...
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  • 30.5k
23 votes
2 answers
1k views

How can I delete an answer which has been accepted?

I no longer want to help a particular user (picakhu) due to repeated comments that my considered answers are not helpful, changes in questions after I answer, and the user's pattern of not voting ...
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  • 2,965
23 votes
1 answer
1k views

Are the words "hey guys" blacklisted and automatically stripped from edits?

Today I chose to edit a post that I found in the "First questions" queue. It began with the words "Hey guys", and I chose to leave them since they expressed the OP's personality ...
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  • 33.9k
23 votes
1 answer
855 views

Are there some tools to follow deletions on this site?

Main question: Are there some (reasonably easy to use) tools to follow deletions on site? In particular, are there some ways to find self-deleted questions? Are there some ways to see deleted content ...
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23 votes
1 answer
718 views

Is using blockquote for highlighting problematic?

I want to ask whether using blockquote for the purpose of highlighting some part of a post is discouraged and whether it can cause some problems for users viewing the question? Example: Is using ...
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23 votes
2 answers
329 views

Inter-StackExchange.com ads

Can something be done on our side to be slightly more selective about what comes up in the inter-stackexchange.com ads we have on the front page? I've just been informed someone has asked whether «"...
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23 votes
0 answers
233 views

How can I help a feature request to get noticed/implemented?

If you look around Mathematics Meta, there are many feature-requests which are marked neither status-completed nor status-declined. In many cases they are probably waiting for further input - for ...
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22 votes
2 answers
2k views

Someone "Copying" your answer after you post it

I was answering this question; after my answer posted, this user edited his/her answer to make it almost identical to mine, but just rearranged the statements $(1)$ and $(2)$ in different order. ...
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  • 5,100
22 votes
3 answers
89k views

How can I type the "isomorphic","not equal" and "the set of integers , rationals and reals" symbol? [duplicate]

How can I type the "isomorphic","not equal" and "the set of integers , rationals and reals" symbol ? What is the code ? $=$ means equal, how to write "not equal" What about real numbers, ...
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  • 8,648
22 votes
1 answer
637 views

How to ask for help in understanding specific parts of a paper or proof.

When I ask some question, I strive to make it as self-contained as possible. Sometimes though, this turns out to be very hard, since the question is about a specific step in the middle of some proof ...
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  • 1,054
22 votes
2 answers
450 views

What can be used for checking on posts you downvoted/closed?

I have seen discussions where some users explicitly mentioned that they tend to go back to questions and answers they downvoted (or voted to close) and if they were sufficiently improved, they retract ...
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