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

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4077 votes
39 answers
1.9m 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 > ...
354 votes
14 answers
122k 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 ...
Willie Wong's user avatar
  • 73.8k
124 votes
17 answers
22k 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 ...
95 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 ...
Git Gud's user avatar
  • 31.5k
84 votes
7 answers
20k 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) @>{...
Grigory M's user avatar
  • 17.6k
73 votes
3 answers
5k 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 ...
Mike Jones's user avatar
  • 4,470
70 votes
5 answers
3k 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 ...
69 votes
2 answers
11k 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. ...
Klangen's user avatar
  • 5,295
66 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, ...
Georges Elencwajg's user avatar
61 votes
1 answer
5k 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 ...
Willie Wong's user avatar
  • 73.8k
52 votes
2 answers
18k 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 ...
Maesumi's user avatar
  • 3,702
45 votes
60 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 ...
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}...
JCCyC's user avatar
  • 659
42 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 ...
quid's user avatar
  • 42.3k
37 votes
1 answer
2k 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 ...
Geoff Dalgas's user avatar
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 ...
37 votes
0 answers
2k 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? ...
Alexander Gruber's user avatar
  • 27.2k
36 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?
Asaf Karagila's user avatar
  • 397k
34 votes
1 answer
2k views

I am requesting the moderators to delete that post

As I lack sufficient reputation to comment, I am creating a meta post. I am requesting the moderators to delete that post because they are cheating Solving $(a+1)^{\log_a(x-2)} - a^{\log_{a+1}(x-1)} = ...
Mods And Staff Are Not Fair's user avatar
33 votes
1 answer
41k 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.
Jeff's user avatar
  • 3,425
32 votes
3 answers
1k 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 ...
Beni Bogosel's user avatar
  • 23.5k
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 ...
Will Jagy's user avatar
  • 141k
31 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 ...
t.b.'s user avatar
  • 78.7k
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 ...
Sasha's user avatar
  • 70.9k
31 votes
1 answer
1k views

Since when does this site require registration to post answers?

I remember the discussion which led to allowing only registered users to ask questions: Let's require registration to ask a question. (It was marked status-completed in October 2016.) IIRC, ...
Martin Sleziak's user avatar
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 ...
Michael Blane's user avatar
30 votes
2 answers
12k 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?
Evan Aad's user avatar
  • 11.6k
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?
user avatar
30 votes
3 answers
412 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 ...
user avatar
30 votes
1 answer
535 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, ...
robjohn's user avatar
  • 348k
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 ...
Slugger's user avatar
  • 5,676
28 votes
5 answers
816 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 ...
user avatar
27 votes
2 answers
929 views

Did the avatars change recently?

The question is in title. My wife notice that my avatar changed from the last time she saw it. Being blind, I did not pay attention to this. Now, it is very pale yellow. Is there a way to restore it ...
Claude Leibovici's user avatar
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 ...
user avatar
27 votes
1 answer
457 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 ...
Asaf Karagila's user avatar
  • 397k
25 votes
2 answers
874 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 ...
Stefan Smith's user avatar
  • 8,222
25 votes
2 answers
839 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 ...
randomgirl's user avatar
  • 3,257
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 ...
Martin Sleziak's user avatar
25 votes
1 answer
385 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? ...
Arnaud Mortier's user avatar
24 votes
3 answers
125k 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, ...
FNH's user avatar
  • 9,250
24 votes
1 answer
872 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,...
For the love of maths's user avatar
24 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 ...
Douglas Zare's user avatar
  • 2,983
24 votes
1 answer
910 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 ...
Martin Sleziak's user avatar
24 votes
2 answers
730 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 ...
Carl Mummert's user avatar
  • 82.2k
24 votes
2 answers
332 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 «"...
Mariano Suárez-Álvarez's user avatar
24 votes
1 answer
639 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 ...
Mathmo123's user avatar
  • 23.2k
24 votes
1 answer
264 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 ...
WimC's user avatar
  • 32.5k
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 ...
Alex M.'s user avatar
  • 35.4k
23 votes
1 answer
807 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 ...
Martin Sleziak's user avatar
23 votes
0 answers
237 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 ...
Martin Sleziak's user avatar

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