# Tag Info

15

15

I don't think it is necessary to provide backup links in case links eventually rot. (In case the backup links rot, do you need backup links to those, too? And so on.) But what is important is that posts should be intelligible without accessing information at third-party sources (other web-sites, books, articles, etc.). If links in a post used only as ...

14

Unlike with attribution, where you have to supply the name of the creator and attribution parties, a copyright notice, a license notice, a disclaimer notice, and a link to the material. CC licenses prior to Version 4.0 also require you to provide the title of the material if supplied, and may have other slight differences. (copyright, license and ...

13

This site has the best granularity for recent PlanetMath outages that I found so far. There is a GitHub developer issues page for bug reports on the PlanetMath software, but it has been moribund since 2014, possibly because of software revisions in 2015. The Google Groups Planetary Developer forum is similarly moribund. I reached out to Aaron Krowne, one ...

12

11

Perhaps not always a good idea. In principle there is nothing to say against it, and actually I used to post WA-links myself here. But WA may change its policies, so the behave of the freely available computing power. It appeared recently, that the same line of code, which gave a closed form solution a year ago doesn't behave the same way now in the openly ...

11

You can obtain links to comments by clicking on the time of the comment posting, which appears right after the name of user who posted it. (Looking at the recent activity in the thread that Hendrik's answer links to, this appears to be a new feature.) Another way is to find the comment in the activity tab of the user who posted it, and click the link there....

10

Click on the share button on the bottom of every post. (There's one in the question you just posted, there is also a separate one the answer I'm writing right now.) If you just want the URL to include in a hyperlink, you can "right click" (or "left" if you are a lefty, command-click or whatever if you use a Mac) and copy the link location from the share ...

10

Since this was asked, we have improved ctrl+l aka the link toolbar button to encode any oddball characters in links inserted into posts: The Wolfram Alpha link from above Note that it is properly encoded, etc. Some browsers also now automatically "fix" these oddball characters when copying from the address bar by encoding them on your behalf. A few tests ...

10

Citing other sites is fine, but because remote links can go stale (invalid), it is best to show as much of the proof or definition on MSE as possible in an attempt to make the article self-contained.

10

I'm that user, so let me chime in here. I'm not sure why this process isn't automated like with questions and answers. As a few of my edits were approved by a Stack Exchange employee, I don't think there is something wrong with it. But I keep the following in mind: For the protection of our users, it's better to make all external links HTTPS instead of ...

9

You can get those direct links by clicking on the little "link" link on the bottom left corner of any answer/question. It is certainly a useful thing, especially when linking to an answer in a question with lots of them!

9

8

You can replace the ^ with the URL-encoded form %5E, e.g: http://www.wolframalpha.com/input/?i=3%5Ex instead of http://www.wolframalpha.com/input/?i=3^Ex which will work like http://www.wolframalpha.com/input/?i=3%5Ex If you use the link button of the editor, such characters will be automatically escaped. If you format your links manually, you have to ...

8

There is nothing wrong with using W|A, but you should definitely attribute the proof properly, and perhaps make it Community Wiki.

8

If the links are simple links then the user has the option of opening in a new tab in any browser which supports tabs. If the links are set to open in a new tab, the user a) doesn't have any advance warning of that; b) doesn't have the ability to override it and force the link to open in the same window. That makes setting links to open in a new tab ...

8

When I look at the specific comment you linked to, I think that the only problems is that you did not include http:// at the beginning of the link. You wrote this: [ArtOfProblemSolving forum](www.artofproblemsolving.com/Forum/viewtopic.php?p=3542095&sid=61650444d5d??5e56fb5c71a50982e4912#p3542095) which does not work: ArtOfProblemSolving forum. If you ...

7

The problem here is the caret, i.e. the "^" symbol. The problem is that "^" is not a valid html symbol, and is deemed unsafe. This is not really a bug. More about that can be seen on Meta.SO: Links with caret ^ do not work? This does not resolve the problem you have - one possible workaround is to use ** instead of ^, which W|A interprets correctly. [...

7

You can quote by simply using quotation marks. You can write a link in a post or comment like [this](url here), for example google link.

7

It has already been pointed out in the comment that a similar suggestion from 2009 was declined. That said, I disagree with the proposal because I believe that should be handled in the browser. I would be (very) annoyed if I would get a new tab/windows every time I clicked an external link. As it is now I can navigate links exclusively using the mouse and ...

7

I strongly hold the opinion that websites should not enforce their own idea of browsing on the user. Let the user browse how he wants, and let his browser handle the browsing. In particular, any user who wants to open a link in a new tab can do so easily using the functionality of his browser.

6

Another approach is to put the hyperlink in using the link tool in the editor (or ctrl+l); this does something like this with all the correct encoding, which is to say: [like this][1] [1]: http://www.wolframalpha.com/input/?i=plot%20%28n!%29%5E%281/n%29

6

@AlexR's suggestion can be implemented using \label and \eqref macros in order to get links from within an equation to another equation (but only such links). E.g. $$\sin^2(\theta) + \cos^2(\theta) = 1\tag{1}\label{dpvc-1}$$ and then a link in the text: \eqref{dpvc-1} is due to the Pythagorean theorem, and \cos^2(\eta) + \sin^2(\eta)-1 \stackrel{\eqref{...

5

Rather than start a new thread, I'm going to try repurposing this older one as a catalog for reporting medium to large breakage of existing URLs. Apparently Encyclopedia of Math has switched off support for http: protocol, so that many existing URLs here (search url:encyclopediaofmath.org on main site, $346$ results) now redirect to the encyclopediaofmath....

5

Have a look at this question on meta.SO: How to link to a comment? I don't know, however, if the solutions provided in the answers still work.

5

I don't think the block quote formatting is available in comments, but you could also just use quotation marks, "[text]" or «[text]». You could get gray background if preferred by using [text], which would result in [text]. (The rest was answered as I was writing.)

5

Since there weren't that many links, I've gone through them manually and fixed what the searches turned up here on meta (flooding the front page, but I thought that would be less annoying than spreading the edit operation over weeks doing two a day ;). On main, there are fewer links, those will be dealt with manually too.

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