Questions tagged [support]

You need help with the use of one or more of the site's features.

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7
votes
0answers
290 views

Can I migrate this question to Mathoverflow?

I asked the question "Which sets occur as boundaries of other sets in topological spaces?" on MathStackExchange on June 23, thinking that the answer is probably known, but there are no answers yet. ...
6
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2answers
633 views

Loss of reputation because a “user was removed”

I just noticed that I lost 10 points of rep because "user was removed". I don't get it.
6
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1answer
397 views

What's the purpose of the favorite button?

I'm trying to understand how the favorite button is meant to be used. I frequently see poorly written questions marked as "favorite". It seems the OP can make this designation. I was unable to find ...
6
votes
2answers
240 views

How do I link to a MO answer?

Sometimes you see in answers or questions a link to an earlier answer to a different question. The url often is a mysterious sequence of digits and letters. How is it obtained? Linking to a question ...
6
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2answers
1k views

Numbering and cross referencing of equations in questions and answers

A basic LaTeX feature which I sometimes miss when asking and answering questions in MO (specially when the question and the particularly the answer are longer) is the possibility of numbering ...
6
votes
2answers
701 views

Where is the Community Wiki?

Apparently there is something called "community wiki" on MO but I don't know how to find the questions,etc that are part of (or belong to) this wiki. (I have a question/post in mind which would be ...
6
votes
1answer
617 views

Why can't I post my question on MO anymore

It seems that my account in MO has been blocked. My post is no more accepted, saying that we are no more accepting post from this account. How can I get my account unblocked?
6
votes
1answer
222 views

Why is Math Overflow a .net website unlike all the other sites which are .com websites?

As stated in the title, MathOverflow is a .net website, unlike every other site I've seen in the SE network, which are all .com sites. Why is MathOverflow the sole .net site of Stack Exchange?
6
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1answer
278 views

Downvoting systematically a user

I have got 8 downvotes in the last 2 days, on various questions and answers. Clearly someone is mad at me... Is there any way to stop that? Thanks!
6
votes
1answer
394 views

Is it possible to know the list of removed users?

Today morning I learned that I have +4 reputation with notification "User was removed". I calculated that probably this removed user posted me two downvotes. Simultaneously my (not very ...
6
votes
1answer
249 views

How do I use the comment notification system?

I would like to take better advantage of comment notifications. Where can I find a complete account of how they work? For example, it appears that writing @FullUserName in a comment will lead to a ...
6
votes
1answer
147 views

deleting junk spam more quickly

In the last days, there have been several posts which are commercial spam (mostly from India, as it seems) and have no link at all with mathematics. Is it technically possible that one of the ...
6
votes
2answers
296 views

undoing an upvote versus reversing it

I recently upvoted an answer to one of my questions. The answer was wrong, but I thought it was helpful enough to earn an upvote. A couple of hours later, the answer changed significantly and (in ...
6
votes
1answer
181 views

How much reputation is needed to cast a vote in an election?

I noticed that MO is currently holding moderator elections, and I'm curious whether or not I will be able to vote. I've looked through the privileges list, and I do not see mentioned there a "...
6
votes
1answer
404 views

Bounty from Community

This question has an outstanding bounty from the Community user. How does that happen?
6
votes
1answer
221 views

Failed migration?

What happened to this question? When I saw it in the review queue, it had 3 votes to migrate to MSE, and 1 vote to close (Yemon's custom reason). But after I cast the last vote to close, it is now put ...
6
votes
2answers
261 views

Undelete request, Question 67384

An answer to Source and context of $\frac{22}{7} - \pi = \int_0^1 (x-x^2)^4 dx/(1+x^2)$? posted on 9 June 2011 gained 31 upvotes before being deleted by its author on 23 August 2012. Would those who ...
6
votes
3answers
1k views

Formatting Sandbox

The purpose of this thread is to enable people to check if their formatting works and to play around with their MathJax code. Quoting from Bill Dubuque's Formatting Sandbox on meta.math.SE: To use ...
6
votes
1answer
265 views

Disappearing Question

Yesterday there was a question about solving the functional equation $f(\alpha t)f(\beta t)=C$ for $C$ constant, $\alpha^2+\beta^2=1$. It was closed as "unclear what you're asking" when the OP ...
6
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1answer
259 views

On an answer containing pre-formatted text

I just came across an answer by a new user which looks very unusual to me: https://mathoverflow.net/a/139275/21095 Specifically, there is very little mathjax in this answer. Instead the vast majority ...
6
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1answer
651 views

Is it possible to use tikzcd code in MO posts?

Question : Is it possible to use tikzcd code in MO posts? There are information for drawing diagrams using AMScd ...
6
votes
1answer
236 views

Hard to notice links in comments

This is a conscious duplicate :D There are at least two more questions about it (The color of links in comments, On the current color scheme, and why it sucks - by the way, when trying to share them ...
6
votes
1answer
265 views

Why aren't the Precognitive and Beta badges retired?

The Analytical badge is retired, presumably because it is no longer possible to obtain it. If this is not the case, please let me know. If it is the case, shouldn't the Precognitive and Beta badges be ...
6
votes
1answer
311 views

How could I have better clarified my question?

I seem to keep getting my posts put on hold in various stack exchanges because it's "unclear what I am asking." How can I do better to prevent this? Specifically right now I'm asking about this ...
6
votes
1answer
161 views

How to cut and paste

It has happened a few times that I have wanted to move someone else's answer from the comments to an answer, when the poster implicitly does not wish to do so (by not responding after a days-old ...
6
votes
0answers
212 views

No reputation change signals if subtracted from bounty?

Right now I am observing the following. Usually every time I get an upvote somewhere, I get a signal about it in the upper right corner. Recently I declared a bounty (and awarded it for an answer) at ...
6
votes
0answers
175 views

Can Mathjax preview be switched off?

I recently typed an answer with a few formulas in it. While I was typing, my browser constantly reloaded the preview part below the typing window. Because MathJax apparently does three passes over the ...
6
votes
0answers
210 views

Why does MathOverflow keep logging me out?

I'm getting tired of logging in to MathOverflow ten times a day. The other Stack Exchange sites I use keep me logged in, and so did MathOverflow until recently. What is different about MathOverflow? ...
6
votes
0answers
107 views

Can I associate my account to two gmail addresses?

I just changed jobs and so I got a new email account. Both are through Gmail. I prefer to keep them separate rather than trying to merge them. When I log in to MathOverflow I always verify using ...
5
votes
1answer
257 views

Does not upvote always increase reputation?

I've got this Why did the upvote leave my reputation unchanged?
5
votes
1answer
331 views

Mathematics and MathOverflow relationship

Is there a connection between Mathematics and MathOverflow sites? Obviously topics are similar, but I mean something like: do questions posted on one site, perhaps with certain tags, automatically end ...
5
votes
1answer
220 views

Order of the tags at MO

I have seen a post suggesting that in SE network a tags for the question should be shown ordered by the popularity (i.e., by the number of questions): Are the tags shown in a particular order? But ...
5
votes
1answer
244 views

“[error] I'm a teapot” when trying to add a picture

When I tried to add a picture to a new MO question, I got the error in the title. The data size is below 1 MB as a jpg image, but above 3 MB as a png. I noticed however that the image doesn't lie ...
5
votes
1answer
188 views

What is the role of star on the left-hand side of a question?

I've been active on MO for a while now, but I have not yet figured out the role of the star that appears on the left-hand side of a question, underneath the number up/down votes. Sometimes there are ...
5
votes
1answer
239 views

How can this user have a negative year reputation?

How on earth did Noah Schweber (whose contributions to MathOverflow I always greatly enjoy) end up with a negative year reputation for 2020?
5
votes
2answers
343 views

If I've found an error in my answer

If I've found an error in my answer, should I delete the answer or just to post a comment saying about the error? It seems that reading my answer may be helpful for finding a true answer.
5
votes
1answer
819 views

Registered vs. unregistered users?

What does it mean if a user is unregistered? I'm interested in the questions and answers of a particular user, let's say "SAM". I clearly see questions that SAM has asked, but when I search for "SAM"...
5
votes
1answer
186 views

5 points for an upvote to an answer?

just a curiosity, how is it possible to receive 5 points for an upvote to an answer to this question
5
votes
1answer
152 views

Edits by anonymous users - when are they the “Community” bot?

I ask because I just turned down a minor edit on something that seemed to be done and dusted back in 2010, and the edit came with a comment briefly justifying it. Now I see that the edit has been ...
5
votes
1answer
213 views

Can 10K+ users see deleted questions?

After a short discussion in comment with 10K+ user, I noticed a fatal flaw in the question, wrote "Thank you" and not before long deleted the question. Not sure the 10K+ user saw my final comment. ...
5
votes
1answer
235 views

How to post a file

Is it possible to post a pdf file of a published article to MO as background for a question? I have searched the help for this. I know we can post specific citations to published articles, but this ...
5
votes
1answer
155 views

Literature Requests & Opinions: Conventions At MO

Background: Having failed to solve a general problem that I posted more than a year ago on mathoverflow.net, I have now resorted to numerical methods (involving finite probability distributions) . ...
5
votes
1answer
204 views

Stable url for linking

This question probably belongs to some more general meta but since most heavily I use links on MO let me still ask it here. Occasionally I link to materials which may disappear at some point - like ...
5
votes
2answers
199 views

I flagged a question with the wrong option. What should I do?

Should I leave it as it is, or leave a comment to this, or flag for moderator attention and explain my mistake? I do not want to draw attention to the specific question this is why I do not link it ...
5
votes
1answer
87 views

How do I add captions to inserted figures

Some of my MO answers have figures in them. How do I add captions and tags to them?
5
votes
1answer
185 views

Cancel delete vote

For closing votes, before a question is closed (5 votes) I can cancel my closing vote (after which I can't vote anymore). After a deletion vote (of a closed question with score $\le -3$), I tried to ...
5
votes
1answer
234 views

Where has the @ gone ?

I started my comment on Marty Isaacs' answer with "@Marty Isaacs". But after saving the comment, the @... disappeared. What's the reason for this behavoir of the system ?
5
votes
1answer
199 views

Trouble with tea?

This post has a link to this one on the old-meta-now-tea site, but when I clicked on it, I got this: A fatal, non-recoverable error has occurred Technical information (for support personel): Error ...
5
votes
1answer
690 views

Examples of MathJax codes of directed labelled graphs to use in a MathOverflow Question

I need some examples of MathJax codes of directed labelled (with loops or multiple edges) graphs to use in MathOverflow Questions so that I could easily change them to my graphs. Here is my try to ...
5
votes
1answer
172 views

How to edit comments?

I see that some comments have been edited, but on comments I have made there is only a delete button, not an edit button. How do I edit a comment?

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