# Tag Info

46

I think the answer here is to be more selective in your questions. The site has to protect itself against getting bombed by low-grade questions from any particular user, hence the limit. (I'm not saying your questions are low-grade, I'm just making a case for the limit.) So only post a question if you feel that a good answer would really help you.

13

You need to add $\require{cancel}$ to your post to be able to use it, $\require{cancel}\cancel\Longleftrightarrow$ will produce $\require{cancel}\cancel\Longleftrightarrow$.

11

You need to ask conceptual questions. Or, to put it another way: Only ask questions you would ask in a class with dozens of other students. Your questions are far too specific and narrow to be useful to anyone but yourself. A lot of people do think such questions are always bad for StackExchange. I don't necessarily agree with that, but I do think 50 such ...

7

You'll get warned and eventually flag banned (i.e. you can't flag anymore, but otherwise you can use the site normally). For that to happen, you have to cast a lot of flags (10 or more in the past seven days) and a rather high percentage of declined flags in the past seven days: 10% for a warning, and 25% for a ban. Comment flags aren't counted (and neither ...

7

This is the (deprecated) mobile web version of the site; it does not have a preview when editing posts. To switch back to the full version, click the 'full site' link in the footer. It seems you have a large enough screen to not need using the mobile web version.

7

It has been said in the comments, but there is a chat (with no limit on the number of questions asked): https://chat.stackexchange.com/?tab=site&host=math.stackexchange.com Here is a List of chatrooms. What you should not do: Asking different questions in one post. Using multiple accounts.

7

The Complete Rate-Limiting Guide on Meta Stack Exchange lists the 50 questions per 30 days limit, and while it's not explicitly mentioned for this particular rule, a similar rule for 1 question per 40 minutes has the following remark: This applies to the user's IP address, not their account. If the user shares that IP with other users, they can be limited ...

6

First, go to your profile and hit main user Now, hit activity Now, go to questions Here it is

6

The search tools on MSE offer a large range of options which can serve to filter search results. Per the comments above, you can use the search flag isaccepted:yes, but this is going to narrow your results only to those questions which have accepted answers. There are two major pitfalls with this approach: When an asker accepts an answer, they are ...

6

Illustration for the OP here, given our discussion above. Here's an example of how \require{cancel} can be worth declaring at the start of the post. Please click on "edit" to see how I wrote this. $\require{cancel}$ Provided $x\neq 1$, we have: \frac {x^2-1}{x^3-1} = \frac{\cancel{(x-1)}(x+1)}{\cancel{(x-1)}(x^2 + x + 1)} = \frac{x+1}{x^2 + x + ...

6

Seems like it's a capitalization issue. No special package is required for \langle $\langle$ and \rangle $\rangle$.

5

I don't really understand the question. But I think at least part of the question is how to have a reasonable looking "long arrow" version of $\nLeftrightarrow$ and so on. The OP is aware of the cancel package, but the result of e.g. \cancel\iff$\cancel\iff$ IMO is suboptimal. Here I suggest a variant with some \hspace commands. I made the space ...

4

This is nearly a dupe but seeing how no one voted to close maybe I can try to summarise the information better than the exploratory post there. AFAIK the current options are Description Input Output Copy paste the Unicode symbol 𝟙 $𝟙$ $𝟙$ The naive \mathbb1 (not reccomended: only works with some setups e.g. HTML-CSS renderer on machines with the STIX ...

3

It is not possible to make an image whose colors vary depending on whether the background is light or dark. The PNG* standard simply describes the color of each pixel, including an alpha channel; it has no provision for "responsive" images. However, there is a workaround: You can also use the inverse, black text with a white outline. The point is, ...

2

A closure flag is marked helpful if the question is closed, or if (after you raised the flag) at least one user with the close vote privilege voted to close it and used the same top-level reason as you did. ('Not suitable for this site' is a top-level reason; for example, it doesn't matter if you chose 'Missing context or other details' and the close voter ...

2

$\def\niff{\iff\kern-1.75em/\kern1.25em}$ This method, using the \cancel macro from the package cancel, seems not to render the cancel stroke in the correct colour. Does that package always render the stroke in black? At any rate, it is practically invisible on a black background, and its only effect is to obliterate some of the symbol it is meant to be ...

1

OP, I did a search. Most of your questions are about Math Olympiad problems I gather, is this right? The best way to learn math is to do your best to work though the problem yourself, and THEN ask for help after you have given it a good effort. If it seems that you are not able to get any of the questions, then this may be a sign that you need to go back to ...

1

$\def\nimplies{\implies\kern-1.8em/\kern1.3em}$ Seeing as the command \cancel from the package cancel has been recommended both in this question and in this earlier question on a similar subject, I repeat here the issue that I raised there: \cancel doesn't draw the stroke in the correct colour --- it appears to draw it in black, which is sometimes incorrect, ...

1

Testing @MichaelHardy's question about whether \require{cancel} in one post enables it in others. I assume it's present in @AsafKaragila's post, since it uses the macro successfully, but I'm not sure how to view the source (I usually pretend to suggest an edit and then cancel it, but that doesn't work here). PRE: I assume that the answer is that "no, ...

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