# Tag Info

76

I am not a mathematician and I am here. Therefore there is at least one non-mathematician here.

42

As Paramanand says aptly in the comments : The fact that you get high quality answers is more important than the information that the answerer is/is not a professional mathematician. First, I will answer the question : By my estimation, I have been on the site for about three and a half years. I would like to mention that there are quite a few experienced ...

16

Stack Exchange and Wikipedia are both crowd-sourced sites. Experts and non-experts alike can post content to both. Some Stack Exchange answers link to Wikipedia, and some Wikipedia articles link to Stack Exchange answers. It is highly probable that there's overlap between the Wikipedia editors who edit the articles on mathematics and the users who answer ...

15

To cover an additional sector of people beyond those in астон вілла олоф мэллбэрг's answer. There are probably many people self-taught people with little to no formal credentials. (This is certainly true if PhD is the minimum bar.) Obviously, this is easily doable for something like high school algebra or undergrad calculus, but it's certainly not limited to ...

13

A main source of questions are those of beginning university/college students, or those at this level, which can include some advanced high-school students. More abstractly, persons towards the beginning of their tertiary education, or very close to the end of their secondary education. Now, a main subject of study in mathematics at this level is calculus/...

12

Yes, the account in question has been deleted. (In general, accounts which are greyed out either belong to a now-deleted account, or, in the case of migrated questions, possibly to an account that was never created. When an account is deleted, the display name is reverted to the default user#### form.) Voluntary account deletions can happen in basically two ...

12

You were only looking at the reputation earned during the current month: Click on the "all" to get cumulative reputation (modulo caching):

10

You can use the Stack Exchange Data Explorer for these kind of things. For Q1, this query lists the questions answered by the two highest reputation users on the site, but you can easily adjust the user IDs. Q2 requires a slightly different query (I took your user ID and a random person who answered one of your latest questions). Please note that SEDE is ...

8

We can go to stack exchange data explorer. There is a script for top users without gold badge. Below is the list of top users without gold badge on our site as of September 24, 2017.

8

One cannot have negative total reputation, but one can of course lose reputation during a set time period. Bounties are a popular method for such reputation losses. In the reputation leagues for a fixed time period (the last week/month/quarter/year), the reputation change during that period is listed. In the all-time reputation league, the current total ...

7

If you go on the main site and click on users, you see them ranked by reputation. Click on one of the possibilities week/month/quarter/year/all to select the range from which you want see the reputation. If you click on all, you will see the users ranked by the total reputation. You can find some interesting information also in reputation leagues. For ...

7

Regarding your questions: There is no dedicated feature to see how many users are online (but see Martin's comment for some ideas); it is also not exactly clear to me what it would mean. Generally, the site is more designed as an asynchronous medium, not for real-time or near real-time interaction. The follow feature is very new. As far as I know such a ...

5

Would you say that Pierre de Fermat was a mathematician?

4

It could be one or two things: caching - reputation leagues are updated once a day, the /users page more often. The 'reputation change' column in the reputation league includes reputation from so-called private reputation events: see Why is my total reputation less than my monthly reputation? on Meta Stack Exchange. For example, reputation gained on answers ...

4

Coincidentally, we had a similar question earlier this month on Meta Stack Exchange: Why is the 'Next badge', Curious, the same as the Newest badge in this profile?. I can repeat my answer verbatim: That's status-bydesign. This is how that widget looks for the owner (except that this is a different badge): Until they've made a choice for which badge ...

4

The link to list of users ordered by participation is http://meta.math.stackexchange.com/users?tab=participation: http://meta.math.stackexchange.com/users?tab=participation If you simply remove meta. part from the URL, you get this list: https://math.stackexchange.com/users?tab=participation I'd guess that it is calculated by the same algorithm as on meta, ...

3

There just is no answer that was deleted. Note what it says (added emphasis): "This message means that a user who voted for one of your posts had their account deleted[...]" What happened is that a user was removed that had cast an upvote on one of your answers, and the ten points gained from that upvote were removed (to be precise, it could also be any ...

3

You (technically) ask different questions in the title and the body. On Stack Exchange, contributions $\neq$ reputation and posts. There are many, many, many other ways in which a user can help out: Editing posts without making trivial edits Completing review tasks without merely skimming the post at hand Participating on meta without simply giving knee-...

3

I only see 10727 when I search in meta, but when I search on main, I only see 84371. I had thought that only registered accounts showed up in the search, but the unregistered account 10727 shows up (in meta). I see that there is no meta account for 84371. Perhaps he has not opened meta with that account.

2

There is probably a somewhat large number of MSc engineering graduates having gone back and specialized in mathematics applied for their field on PhD level. I am one of those, anyway. For more "pure math" folks it seems to me that MathOverflow is a more of such a site.

Only top voted, non community-wiki answers of a minimum length are eligible