# All Questions

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### 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 ...
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### 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 ...
11k views

### List of comment templates

Inspired by this question on meta.cstheory.SE. The post at meta.Tex.SE is quite impressive. We often leave generic comments to OP and answer posters such as: "if this is a homework, please add a tag,"...
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### Requests for Reopen & Undeletion Votes, etc. (volume 01/2015 - 07/2018 ) [duplicate]

The purpose of this thread is to help focus the attention of the community on posts that may require exceptional handling. This includes requests for reopen and undeletion votes. A request should be ...
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### List of Generalizations of Common Questions

Bill Dubuque raised an excellent point here: Coping with *abstract* duplicate questions. I suggest we use this question as a list of the generalized questions we create. I suggest we categorize ...
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### Tag merging and synonyms [closed]

Moderator's Note: I am (at least) temporarily closing this thread. New suggestions should be made in the current Winter tag cleanup meta-thread. This is half a question, half an announcement. I ...
6k views

Also known as the happiest place on the website! Use this thread to congratulate MSE users that you feel have reached a significant milestone on the website, or to congratulate the website itself, if ...
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### How to ask a homework question?

How to ask a homework question? Can I ask a homework question here? How do I ask a homework question on this website? What information should I include in a question about homework? Why don't you ...
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### 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 ...
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### Tag management 2015 [duplicate]

Tags need a regular cleanup. This is a customary thread for tag synonyms etc. Rules of the game are basically the same: post your suggestion as an answer here if you see a particularly bad tag (a ...
11k views

### Should chat have TeX support?

OK, so chat is now available... but; it has been suggested that for Mathematics we should have TeX support. The current TeX processing has some non-trivial client impact. Before I even attempt trying ...
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Today I went to ask a question, but I discovered that somebody else had already asked the exact same thing. Goody for me, right? Well, the trouble is, the question got several answers, but I don't ...
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### How to grab users' attention on an old question?

Unfortunately, I haven't figured out whether this question is appropriate here. So I'm sorry if it is not. But nevertheless, here it is. For example, I have a question. A problem, or maybe a piece of ...
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### Requests for Reopen & Undeletion Votes (volume 07/2018 - today)

The purpose of this thread is to help focus the attention of the community on posts that may require reopen and undeletion votes. A request should be posted as an answer below (one request per answer)....
2k 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 ...
2k views

### What should one do when one's question has been answered in the comments?

Once in a while, when one is venturing out of one's area of expertise, one may post a question and find it answered quickly and completely in the comments section. Perhaps someone has linked to a well-...
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### Proposal: Discourage questions that are nothing besides a problem statement

This is a very clear followup to Qiaochu's question: http://meta.math.stackexchange.com/questions/9180/proposal-ban-verbatim-homework-questions The reason that I create a new post is because I want ...
2k views

### Best way of asking “check my proof” questions

I am trying to learn proof based math on my own and once I construct a proof, I often have a gut feeling that it's not airtight. What is the best way of asking such questions? My findings till now: ...
19k views

### FAQ for math.stackexchange

Right now, the faq only contains the boilerplate explanations of the stackoverflow engine, reputation levels, etc. This page serves as an index of other important support questions for the community. ...
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871 views

### The “meta-tags”.

What are the tags reference-request, soft-question, big-list for? When are they used? When should they not be used?
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### Is it appropriate to downvote answers for the sake of deleting a question?

I have noticed that sometimes answers are downvoted in order to cause the automatic deletion of a question by the community user. In particular, there are closed questions with $1$-point answers - ...
3k views

### A Consolidated Homework Policy

A certain theme during the Town Hall Chat was on the question of a homework policy. The idea of such a policy is not new. As one user said in the chat, I liked Rob john's suggestion towards ...
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### Guidelines for good use of $\rm\LaTeX$ in question titles

Motivation: Every once in a while, I find myself making edits like this one, where OP (likely due to inexperience in asking questions) has used display math mode (...
785 views

### How much bumping is too much?

Quite often some old questions are bumped for various reasons. They are edited to correct minor typos, punctuation, adding links, adding a more informative title etc. They are retagged - e.g. for the ...
9k 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?
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### Should we ask for Question Quotas like those that have been available for the big three?

Our site is growing quite rapidly: currently each day there are about 150 new questions asked about 250 new answers posted about 150 edits made to posts. Each of the above actions changes the front ...
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### Are “please check my proof” type of questions proper?

I am investigating a somewhat obscure area of number theory. Can I post a proposition and a complete proof and ask people to check it?
7k views

### Coping with abstract duplicate questions.

Any longtime reader cannot help but notice that we get many abstract duplicate questions, e.g. this recent question on partial fraction computation, which is not essentially different from many other ...
2k views

### Tag management 2017 [duplicate]

New year, new tag management thread. Rules of the game are basically the same: Post your suggestion as an answer here if you see A particularly bad tag (a rule of thumb: «if I can't imagine a ...
1k views

### Is there any way to see my deleted questions or answers?

Previously I deleted some of my questions, I wonder if there is a way to see (only) my deleted questions?
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### 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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### 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 ...
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### The scope of \newcommand is the entire page

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### Minimum suggested edit length

I just edited a question which was missing a couple of {} in its LaTeX markup. The effect was to make it hard to work out what was going on for people (such as, I ...
1k views

### On the inclusion of pages-of-text-as-images in questions

This is to ask if there is and if there should be an official position of math.SE about the inclusion, as images, of pages and pages of printed documents in questions. For a recent example of the ...
335 views

### Why does @someone sometimes disappear from comments?

I find the following occurring bug weird. When I post a comment I start with @someone. But for some reason this does not always get into the text. I get no error message but it is not there. In ...
2k views

### List of chatrooms

This is a place where we could collect list of chat rooms associated with this site. There are several rooms which have potential to be useful if more users were aware of them or more users visited ...
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### Why do some users delete their questions after receiving an answer?

It has happened several times now that a question is deleted by its author a few minutes after I post an answer. I suspect it's because the question is a homework question and the user wants to ...
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### Two announcements: new “FAQ” and new “closure rules”

I want to point everybody's attention to two changes that will impact your user-experience here on Math.SE The first you may have already noticed: the old FAQ page has been replaced by a "help center"...
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### MathJax: better way to prepare a Math.StackExchange question?

So right now, to write up a question for Math.StackExchange, I use Firefox to come here, say I'm going to ask a question, and start typing in the box (like I am now). The only way I have to test ...
3k views

### Tag management 2016 [duplicate]

Since it is a new year and the old Tag Management question has already over 70 answers, it is time for a new Tag Management thread. Rules of the game are basically the same: Post your suggestion as ...
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### Tag management 2018 [duplicate]

New year, new tag management thread. Rules of the game are basically the same: Post your suggestion as an answer here if you see A particularly bad tag (a rule of thumb: «if I can't imagine a ...
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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### Save the answer in PDF?

Lot of answers here are excellent but there is no way to save it. Even if we can put them in favorites or print them. What about create a way to save answers in pdf? Also on meta : Is it ...
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### Fate of the (homework) tag: The community voted… now what?

Well, the results of the voting seem pretty conclusive: Leave homework alone: 43 upvotes (20.38%) Deprecate but don't delete homework: 12 upvotes (5.69%) Burninate and blacklist homework: ...
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### Under what circumstances is it appropriate to delete a question that has received a good answer?

I would like to have a discussion about the following question: When is it appropriate to delete a question which has been closed as "missing context or details," but which has generated ...
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### Tag cleanup 2014 [duplicate]

Tags need a regular cleanup. There was a number of questions on particular tags recently — but (while proposals for some really major changes should, perhaps, be posted as separate questions) maybe a ...
Sometimes, proof-verification questions ask for verification of a valid and overall solid proof (some examples: What is the $\dim L(X,Y)$?, Prove \$(\overline{A \cap B}) \subseteq \overline{A} \cap \...