Questions tagged [markdown]

For questions about Markdown, a lightweight markup language used across the entire Stack Exchange network for post formatting.

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Why does a table work on preview but not on post?

In waterstreamer's recent post, they used a table to present the possible Jordan normal forms of a $3\times3$ matrix. As they comment, and I checked, the table looks just fine on preview, but ...
LSpice's user avatar
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2 votes
0 answers
62 views

How do backticks, escaped backticks, and math mode interact, in posts and comments?

I know I can escape backticks, like `. I though I could escape backticks within backticks, as I did in a comment, but it's not working here: a\b`. See a comment ...
LSpice's user avatar
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5 votes
2 answers
188 views

Why do `* *`s and `** **`s stop being recognised at some point, and how can I fix the resulting inadvertent vandalism?

I recently submitted an edit to Another notion of exactness: how to refine it, and where does it fit? to replace hand-rolled commutative diagrams with AMScds, since ...
LSpice's user avatar
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3 votes
0 answers
144 views

In Safari on macOS, a numbered list beginning with a displayed equation swallows the number

This bug report did not originally mention the platform and the renderer. I originally put them at the end, but it occurs to me that they're more useful up front. Thanks to @DavidRoberts and @...
LSpice's user avatar
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3 votes
1 answer
147 views

Spoiler mechanism not working

In a recent answer I've tried to hide some text. Unfortunately, something seems broken. Here's the not-so-hidden text: ! Let $X$ be the set of complete theories that satisfy "everything is ...
Noah Schweber's user avatar
4 votes
0 answers
76 views

Drop-down lists

Would it be possible to have markdown drop-down lists in MO? I think that hiding lengthy examples, components of long proofs, edited out text etc., inside such menus could add readability.
Yaakov Baruch's user avatar
3 votes
2 answers
271 views

MathJax equivalent of `<strike></strike>`

I recently tried to edit an old question x-th moment method that had got bumped to the front page for other reasons. The post had an equation that was meant to be, and maybe at one point was, struck ...
LSpice's user avatar
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3 votes
1 answer
112 views

`\DeclareMathOperator` at the beginning of a comment disables some link parsing

In a comment of the form $\DeclareMathOperator\a{a}$Here's a [link](http://mathoverflow.net) and [another link](http://mathoverflow.net) $\a$, neither link is ...
LSpice's user avatar
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9 votes
5 answers
283 views

Is it possible to temporarily comment out part of a post?

Scenario (true story): after posting something I became doubtful about certain claim there, so I want to hide it until I clarify my doubts. Of course I could just move that part to a temporary file, ...
მამუკა ჯიბლაძე's user avatar
5 votes
0 answers
87 views

Dollar sign in image title works in preview, but not in actual post

I was just trying to clean up Understanding why $\pi_{3}(N) = \mathbb{Z}_{(2n, n^2)}$? , which was originally almost entirely cut-and-pasted images without any alternate text. For the first image, I ...
LSpice's user avatar
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2 votes
1 answer
78 views

Why does Markdown not always work?

In this post, I selected text and marked it bold with two stars. But it displays for me (both in preview and after posting) like this: Is this related to the move to CommonMark as noted in the post, ...
Joseph O'Rourke's user avatar
2 votes
1 answer
67 views

Long strings preventing code block rendering

In this answer I tried to edit the rational points given to lie in a single code block ...
David Roberts's user avatar
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7 votes
2 answers
163 views

How to post a computer code by copy-paste?

I just want to add a computer program to my answer. However all my attempts to copy it result in total garbage displayed because all "less" and "greater" signs are perceived as HTML markers. I tried ...
fedja's user avatar
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14 votes
3 answers
977 views

Is it OK to abuse Mathjax for emphasis?

The author of this question uses Mathjax (in a way different from its intended usage) to make parts of his question stand out more; for instance, to display some headers in red or to alter the spacing ...
Federico Poloni's user avatar
4 votes
1 answer
155 views

Markdown not rendering in a particular comment

In a recent comment, one occurrence of stars-to-italics ('particular') doesn't render, but one does ('abstract'). This seems to be a bug. Is this the right place to report it? EDIT: Now also ...
LSpice's user avatar
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4 votes
0 answers
212 views

A markdown question: are custom list number formats possible?

For list numbering, 1., 2., ... are used. Could I change this somehow, to use, say, (1), (2), ... or i), ii), ...?
მამუკა ჯიბლაძე's user avatar
1 vote
1 answer
109 views

Cancel command in MO post

Why the \cancel command does not work in the last part of the following post: A cohomology associated to a Riemannian manifold I would like to strike through the last part of the ...
Ali Taghavi's user avatar
5 votes
1 answer
96 views

Formatting problem

In my answer to When is the closed unit ball in a smaller Banach space closed in a larger Banach space? I wrote the following: > Edit: $Y=Z^*$ does not display correctly when it is in the body ...
Bill Johnson's user avatar
12 votes
1 answer
13k views

Using MathJax for formating (**bold**, *italics*)?

Some users use MathJax to get italicized or bold text. This is sometimes done in titles (where MarkDown is not available), but some users do this also in body of a question, where MarkDown is used. ...
Martin Sleziak's user avatar
4 votes
0 answers
222 views

I don't succeed in hiding paragraphs using >!

I found here in the spoilers paragraph that putting >! would hide the following things, which was a way for me to alleviate a question's heavy presentation by hiding paragraphs that could be seen if ...
Olórin's user avatar
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4 votes
1 answer
331 views

How can I add a diagram or picture to my questions?

As it is obvious by title, I need to add a diagram to clarify my intuitions in some questions. How can I do it? Is there any limitation in format and size of the pictures?
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