27

I agree that text formatting should be accomplished with Markdown if at all possible. Since Markdown is used across Stack Exchange, there will generally be better support for proper rendering across browsers, mobile devices, screen readers and other accessibility tools, and better compatibility with future systems. MathJax, by its nature and because it is ...


15

You can hide the part in HTML comments: BEFORE <!-- this is something I want to hide --> AFTER produces: BEFORE AFTER Spoilers would be another option, but perhaps less clear in conveying the intention. >! This is something I want to hide produces


13

Since other answers mention HTML comments, let me clarify that using them is only a commonly employed custom on SE sites, which just abuses the fact that it works by accident. In reality, the Stackexchange Markdown parser does not support HTML comments. What actually happens is that the initial < followed by unrecognized content is parsed as an invalid ...


9

From the formatting help page: Images can be added primarily by using the the editor toolbar button . This brings up a special interface that allows you to upload an image online (through the imgur hosting service) through us - even from your clipboard. Alternatively, it can be input similarly to adding a link: HTML <img src="http://example.com/img....


8

This had to do with the citation helper script - mostly with how I implemented the integration with the editor. The fix is being deployed right now.


8

As explained in the editing help, in MarkDown you can achieve preformatted text by using four spaces indentation. To achieve this after typing (or copy pasting) the code, simply select the relevant part and the click on the code button in the editor (between blockquote and insert image) or press Ctrl+K. To test this I have taken an example of for cycle in ...


7

I think the question is too emotionally laden to present the problem correctly. To me it is like "All the preprints use Knuth's computer modern font. How dare we change that?". The use of the word 'abuse' seems to have already not only judged the action, but tried and convicted it, and sent a summons to the executioner. A more charitable presentation ...


7

Since Stack Exchange allows also some limited use of html, you can use <!---...---> to make a "comment" inside the post. Check the source code of this answer for an example. I will add that I have seen warnings that mixing MarkDown and HTML too much might sometimes lead to problems, I do not know much about types of are known for html ...


5

Once typographers are allowed to run amok, there is no way back to normality. For it'd be only a question of time for multi-coloured flashing parts of text, and what not, to start to appear. Contributions to MO are akin to papers in a journal or chapters in a book, where the editors are free to impose a uniform typography style. Are there any Markdown MO ...


4

You're using a lot of HTML in that post; that shouldn't be a problem per se but I've seen cases where this interfered with the Markdown parser (even before the migration to CommonMark). It's best to use only HTML or only Markdown within a single paragraph in your posts. Replacing **Added 4Aug2020** by <b>Added 4Aug2020</b> should do the trick, ...


3

There are several things that should be said about your question. It is, in my opinion, a bad practice to use MathJax for formatting and not for Mathematics. So it is not good to use MathJax to achieve strikethrough. (MathJax also gives information which part is mathematical formula and which part is text. This information is used, for example, by screen ...


2

Here I typed some code, then selected it, then clicked on the {} icon (preformatted text), and the result looks like this: for(int m=0; m < N; m++): <<&etc.>>


2

This answer if for copy-and-paste in case somebody wants to try whether the comment behaves differently if they change something: I don't think that 'centreless' is a consequence of the abstract isomorphism $G \cong \mathrm{Aut}(G)$—at least, not obviously so—but rather of the particular isomorphism $g \mapsto \mathrm{Inn}(g)$. (Of course your statement ...


2

This answer is intended for testing. Please include the source code used in the comments into the answer — so that we can check when the link works and when it doesn't. 1 $\DeclareMathOperator{\Hom}{Hom}$ [link](http://mathoverflow.net) $\Hom (U\times V,W)$ and [another link](http://mathoverflow.net). 2 $\DeclareMathOperator{\Hom}{Hom}$ [link](http://...


2

$$ % You can hide your drafts inside the math environment, using the percentage symbol. Click edit on my answer to see it in action. $$ $$ % Assume the Riemann Hypothesis is false. % Then clearly... hmm. $$


1

"posting something"... Do you mean a question or an answer? I occasionally to the following with my answers. "Delete" it, until I am ready, then "undelete" it. I have never tried this on my questions, but someone once told me that I cannot do that with questions.


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