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27

This, I think, is the move to https links, where all the links which point to SE were silently edited in the background from http to https. For example, https://math.stackexchange.com/posts/29797/revisions, which points out to the date in question being April 13, 2017.


14

The rationale behind this is explained here by one of the Community Managers: What kind of answers are you posting, if they take less than 3 minutes to write? Take an extra minute or two to provide a link to your sources, or fix spelling. (As others note, the limit exists to reduce the damage abusive users can - and, prior to the limit did - cause ...


10

I agree with what was said in comments. I'd say, yes, that's on-topic. Maybe a bit borderline, but in the end it should be fine. However, please, absolutely include the information where that question comes from (at least abstractly, is it from a book, is it from a typed handout, a webpage, a handwritten notebook copied from a blackboard, etc) and also ...


8

As suggested in the comments, some statistics might be available using SEDE. In particular, you can see what data about the posts are available in Database schema documentation for the public data dump and SEDE. (Keep in mind that data in SEDE are only updated once a week, so they might be slightly behind the live stats. If you want to see similar stats on ...


7

Some time back StackEdit veered away from MathJax support for $\LaTeX$ and instead took up the KaTeX package. Presently they support fewer "environments" than are provided here under MathJax. A workaround for the particular deficiency you found is to use \begin{aligned} and \end{aligned} rather than the (unsupported by StackEdit) align* environment.


7

I do not know solution using AMScd. (As far as I know, AMScd only has horizontal and vertical arrows.) If you are familiar with xypic, you could use this syntax and include it as a picture. (You create it either locally on your computer or using some online tool, for example, the presheaf website.) It is reasonable to include somewhere (maybe as a comment ...


7

As suggested in other posts about this issue, you can use <sup> or <sub>. It is probably not optimal, but at least doable within the limitations of the software. See: How do I use a small font size in questions and answers? You can also support a related feature requests Allow the <small> tag and Markdown extension for really small tiny ...


6

To find posts by a deleted user if you have the userid you can use Data Explorer (SEDE). See also: Is there a way to check all questions/answers posted from a deleted account (MathOverflow Meta) and Shadow Wizard's answer to Why not keep anonymous profiles accessible? (Meta Stack Exchange). Some examples of SEDE queries: Get posts list of a deleted user ...


5

You have put a in the middle of the question identifier (that number after /questions/ in the URL), which is why the link didn't work. The link itself only depends on that number, so you can even use https://math.stackexchange.com/questions/3225642/this-can-be-anything-really-it-doesnt-matter, and it would work just fine.


5

Moderators can only delete, dismiss, or edit a comment. We can't even add a reason if it was helpful or unhelpful. While you can retract (and reflag) posts, you cannot do that for comments. So in the case of comments, I might disagree with the flag, as a whole, but agree that the comment should be deleted. The reason I decline in such cases is to signal ...


4

As Martin Sleziak commented, the delete vote came from a trusted user on the Low Quality Post review queue. Trusted users can vote to delete zero-scored answers from the review queue directly. As explained by Shog9 from Why I'm casting delete votes in the Low Quality review queue?, Review gives you a bit of a boost by allowing you to vote to delete 0-...


3

The answer says among other things: This is a great book for you to understand when to use certain concepts, equations, and tables. This is a very good introductory text into thermodynamics for undergraduate students. That's a bit peculiar as a recommendation for a book on differential equations. Sure some DE might be used in thermodynamics but still ...


2

Choice of technologies Since SE API gets real-time data, while SEDE returns data several days ago, the former will be used. It's better to write a web solution with AJAX, but since I'm not a web developer (even though I maintain the public GitLab instance of Staticman for comments support on static sites), I'll use command line utilities in Unix shell as ...


1

$$\raise{34px}{\vert}\hspace{-5px}\raise{17px}{\vert}\hspace{-12.2px}\downarrow$$ \raise{34px}{\vert}\hspace{-5px}\raise{17px}{\vert}\hspace{-12.2px}\downarrow is a very crappy stand in. $$\underset{\mid\raise{-12px}{\hspace{-3px}\backslash\underline{\phantom{444444444}}}}{}$$ \underset{\mid\raise{-12px}{\hspace{-3px}\backslash\underline{\phantom{444444444}}...


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