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Does anybody here know whatever happened to the StackPrinter site? It seems to me that it is not working anymore. Do you know of a currently working version/link of the site? Please let me thank you ...

I've been part of both communities for half a year now and despite the fact that I've not being particularly active I am surely interested in the good practices in posting questions in here and the ...

Is there a post where one can thank MathOverflow community for its indirect help for a paper that has recently published, along with the link of the paper? (Especially given that MathOverflow being ...

Suppose I have seen an answer to a question by a user X. Suppose another user Y leave a comment under X's answer. This comment received good number of up votes (6 as of now). This comment is not ...

Any question on MathOverflow (or other Stack Exchange site) shows the list of linked questions in the sidebar on the right. A question is added there if there is a link between the two questions ...

The Mathematics SE question Can there be an energetically unbounded three-body orbit where escape is impossible due to conservation of angular momentum? was well received and someone had graciously ...

Recently, while reading this answer, I noticed that the links such as this one to gmane.org don't work. After searching around for a while, I was able to discover that these mailing list posts are ...

This question is driven by sheer curiosity - maybe even vanity? My reputation curve acquired curious shape lately: I can even guess reasons (mostly personal) why the pace is so slow ever after June ...

I am currently studying an existence lemma that appears to be simple yet powerful. From what I know about it, it is applicable in combinatorics, topology, graph theory, probability, percolation theory,...

The 2-categories tag has no usage guidance, can you help us create it? This is what the 2-categories tag page https://mathoverflow.net/questions/tagged/2-categories says. Can some one create usage ...

It frequently happens that I want to find my old answer. The list of answers on my page consists of 35 pages, so searching in it using my browser search is too time consuming. On the other hand, if I ...

Can I ask question which require very high accuracy calculation with very delicate nature on MO : Ex: calculate: $$S(q)=\int_{x=2}^q\sin^2\left(\frac{π\Gamma(x)}{2x}\right)dx$$ for $q=10^3$ or $10^...

I am looking to find a forum in the Internet intended for math enthusiasts to discuss math ideas outside the question-answer format but at high level. Can anyone advise such sites?

This question on the history of the ellipse terminology was migrated to hsm after a week of being active on MO and receiving several useful answers. Did the OP ask for migration? Why are some ...

One can push the "follow" button below a question in order to get advised of new developments. Can it happen that one gets news from the "recent inbox message" about some questions that one has ...

Sometimes I stumble upon a user who is shown with reputation 1 - despite the fact that the user has many upvoted posts and many badges, which means they should have higher reputation. Why does this ...

Bountied questions cannot be closed: this prompted this meta-MO question. In the answer to that question, the reasons for this feature are explained (closure would shorten the bounty period, possibly ...

Related: this So I have just run a query at SEDE, and get the following data: Upvotes cast by rep 101 users: 66626 Upvotes cast by all users: 1777003 Hence by simple calculation, we get $$\frac {...

Recently, the following tag synonyms were created by a MathOveflow moderator: abstract-algebra $\to$ ra.rings-and-algebras, geometry $\to$ mg.metric-geometry and discrete-mathematics $\to$ co....

Why do we have this restriction? There are many circumstances where it is natural to cite several users (especially when several=two) in one comment.

We have a new user called Asian but no Chinese. It's not spam, and I guess it's not offensive, but it seems … weird. I couldn't find a tag related to username issues on the only other post I ...

In the first paragraph of Prove or Disprove this Darboux-like sum of a function defined on infinite limit points converges to zero, I state that I do not know whether this is a research question. Is ...

25 hours after my account was scheduled for deletion, the account is still active. I tried deleting my answers manually but it is not possible in most cases, same for questions. What should I do?

I am reviewing many posts with close votes recently, and I often end up with the same uneasiness about the reason to chose. In the "Community specific reason" option, there are This question does ...

To moderators: Is my account deleted? The rep number is now 1 . but I can still login. I cannot ask this on meta because $1<5$. Thanks for the comments. The account is scheduled for deletion now.

I am in uni and I'm struggling to write a proper question for this site. I always end up writing too little and people say they need more detail. Sometimes I get a bad rep and criticised for being ...

I have a question about my MathOverflow post: How do we create a better definition (for my definition of average) which is easier to compute and gives exact values? How do I improve the clarity of my ...

Apologies if this has been asked before, but I had a few questions on this site (some of them from when the site run its own copy of the software and before it became part of StackExchange) and I can'...

There are quite a few posts which link to some paper at http://front.math.ucdavis.edu/ rather than directly at https://arxiv.org/ The front for arXiv at UC Davis seems to be down for some time. (I ...

I noticed today that the pop-up screens for voting to close a question have acquired a new layer. Clicking "close" used to produce a pop-up with checkboxes indicating various reasons for closing. Now ...

I have asked What are some efficient ways to keep a note of results of a paper? in Academia SE. Would this question be suitable for MO? Is this better suited in MO than academia?

I would like to write a question $Q$ asking for advice about what to do with a note which I wrote (itself based on a self-answer on MathOverflow) which was rejected from the arXiv (something I didn't ...

This was caused by an answer of mine to the question Slight downward trend in Q & A. I was adding another update to that answer when I noticed that the query I was using there now can be run for ...

This question Everybody wants to know what's going on with this but we should leave it to Twitter, Reddit, blogs, etc. There is very little actual Mathematics in the discussion I linked to. (I am ...

Description of the Announcer badge reads Share a link to a post later visited by 25 unique IP addresses. This badge can be awarded multiple times. I have just earned the fourth one. And for none ...

Why are people trying to close this question? This was posted yesterday. There are 3 close votes so far and not a single comment from anyone.

when I entered the following $$\pmb{ \frac{d_+^n}{dx_+^n}}:= \left(1, \frac{d^1}{dx^1},\,\dots,\,\frac{d^{n-2}}{dx^{n-2}},\,1\right)$$ I observed that the defined fraction has an unsharp ...

There has been a reduction in "traffic," but not nearly as much as I anticipated. This chart is maybe a few days behind a fast-moving situation, but I find it somehow comforting that math "goes on." ...

I was very tempted to answer Suggestions for reducing the transmission rate? with the following. In fact I did, but I deleted it again, because I do realize that there is nothing mathematical in my ...

It appears that reputation earned from editing a question that is subsequently deleted is not subtracted in a reputation-decreasing event (e.g. a "-2: edited question was deleted") that shows up in a ...

which is more important between connection and metric? This question was posted by a new user before 40 minutes. It was not a spam post. It is not clearly mentioned what the question is. ...

I'm getting a weird bug when trying to review one question: https://mathoverflow.net/review/first-posts/127819 The left side links (including the MO banner) are duplicating, and the question itself ...

Every now and then we get a post to meta about ways in which MathOverflow has improved the quality of someone's research. One way I haven't seen mentioned is one that just now happened to me, and (...

Now that my college shifted to online education because of the coronavirus, I would like to setup a MathOverflow style site in Hungarian where I could post exercises, and students could comment, post ...

At 2000 rep, users gain the privilege that edits are applied immediately, and loses the ability to suggest edits. However, sometimes I find that I would prefer to suggest edits and leave it up to the ...

On the main MathOverflow site (and also on math.stackexchange) the icon for the citation helper, which used to look as below, has recently confusingly changed to a "B", identical to the icon at the ...

Is there a way to search through deleted questions? Can a user reach his or her own old deleted questions? In the early days of MO I asked about similar sites in related disciplines and there were a ...

I recently noticed some very bizarre behavior on this old post. The user who asked the question is currently operating under the username "Loop Space". This user seems to have previously operated ...

The colour of hyperlinks on the main site changed today. While basic links remain blue, they turn orange on hover, and a darker orange-brown colour when visited: I can’t imagine this awful colour ...

I usually find unclear how to choose between the closing reasons "Needs details or clarity" and Needs more focus. Moreover the reasons "Off-topic because..." seem much more frequently used. Would ...