# Tag Info

Accepted

### Discouraging the use of textual screenshots in questions

I agree. Screenshots of text have no place on this site. There is simply no reason that plain text should ever be presented as a screenshot, and plenty of reasons why it shouldn't. If you want to ...
• 124k

### Would the braket extension in MathJax v3 be appropriate and useful for this site?

Just as a place to gather votes as a clear signal: Yes, the braket extension is appropriate and useful. It should be enabled on this site whenever the MathJax version is upgraded to v3. (Vote up if ...
• 124k
Accepted

### Is MathJax in titles OK?

I would argue that MathJax in titles should be kept to the minimum required, and as readable as possible, but if it is integral to writing a good title for the question then it should very much stay ...
• 124k

### How to deal with users that just won't use MathJax?

I see two relevant classes of users here: The user in question is a relative newcomer, and they've come to rely on other people fixing posts with substantial amounts of mistyped math for them as if ...
• 124k
Accepted

### Can we have a font which harmonizes better with MathJax?

Ask and you shall receive. This site is in line for CSS conversion, and, while we're in there, we'll make sure that we match the serif font in the body like Chemistry SE and Math SE. Thanks!

### Discouraging the use of textual screenshots in questions

I agree that text should not be a screenshot. A link could refer to the text and the content described. That elsewhere reference refers indirectly to me, because I am not open to learning mathjax . ...
• 223k
Accepted

### siunitx LaTeX package?

If you convince your administrator to enable mhchem here – chemistry.SE does have it – then you could make use of MathJax/mhchem's \pu command. ...
• 111
Accepted

### Why can't I write down tilde? Is there any MathJax syntax?

is a small space, while \tilde{} is an ornament of a character. Use instead e.g. \sim. ...
• 172k

### MathJax on Meta

Typically if MathJax is enabled on the main site, we turn it on for meta too. I'm not at all sure why it wasn't done here. No doubt there was a good reason (or at least an understandable one, such as "...
• 231

Update 2015/03/30: CloudFlare reports that the issues have been resolved. Peter from the MathJax team here. Our CDN provider has been experiencing attacks on some of its DNS servers (see also this ...
Accepted

### Should I edit question to format equation linked as image in MathJax?

Yes, you should edit and/or leave a comment in these cases because Images are fixed size and will display poorly in small browser windows, particularly on phones. MathJax is searchable, although the ...
• 108k
Accepted

### The scope of \newcommand changed

OK, I've gone through the list of answered questions. There should be no more broken LaTeX caused by this change on the site, but if you find any more, fix it on sight!
• 124k

### The proposed changes to the text editor would break this site

Here is one option put forward by the SE developers: switching from MathJax to prosemirror-math. For a quick look at how it works, I'll just pull this from their readme: Examples Unlike other editors,...
• 124k

### An alternative to MathJax in chat

The Unicode character set contains most of the characters that are needed to construct equations. For example you can write: ds² = -(1 - 2GM/c²r)c²dt² + (1 - 2GM/c²r)⁻¹ dr² + r²dθ² + r² sin²(θ)dφ² ...
• 334k

### Is MathJax in titles OK?

Yes, mathjax in titles is allowed and even encouraged for better readability/clarity. The main priority is to optimize the user experience for Phys.SE. The HNQ is separate from the Phys.SE and has ...
• 172k

### How to deal with users that just won't use MathJax?

The hat fits me, and also it would fit older users . Everybody ages, and with age memory is not the same, particularly short term memory. I do try to use dollar signs around simple formulae, (since I ...
• 223k
Accepted

### Should the tags (mathjax) and (tex) on meta be synonyms?

Okay, I have created a synonym tex→mathjax. The 2 tags are not yet merged, so if the community feels strongly about it one way or another, speak up: It can still be undone.
• 172k

### Is it necessary to use heavy maths and math Jax?

No, I don't think it's necessary to use MathJax. In fact, one of our top answerers here doesn't use MathJax at all. This is mostly because answers, and questions, are based in physics and not in maths ...
• 24.7k
Accepted

### Abbrevation and/or warning for $\langle$ and $\rangle$ commands

I think most experienced users of this site would agree that things like "$|\psi>$" often look ugly enough for one's eyes to bleed at least a little. But the minor level of annoyance from looking ...
• 124k
Accepted

### Is it possible to have the editor and preview in a side by side mode? Or maybe just a scrollbar in the preview?

Almost certainly not; changing the editor is a network-wide change which requires a lot of investment in usability testing across multiple browsers and platforms.. See previously, previously. You ...
• 74.4k
Accepted

### MathJax: How do I write matrices on the same line?

It works the same way you did it earlier in the answer, when you had a matrix and vector: just write the markup for the matrices one after another. ...
• 74k
Accepted

### On Bra & ket notation

the mathjax does not support the necessary packages This isn't true - MathJax has full support for the \langle, | and ...
• 124k

### Can we have a font which harmonizes better with MathJax?

Not much of an answer to the real question because (a) it's a single-user solution rather than the whole user-base of Physics and (b) it applies to all websites and not just this one1, but you can ...
• 24.7k

### Does math in my questions need to be in the form of MathJax?

However, does this mean that without use of MathJax, my question will never be answered? The short answer is no, it doesn't mean that. But there's more going on here than just MathJax. From what you ...
• 74k

### Abbrevation and/or warning for $\langle$ and $\rangle$ commands

kerning, noun: in typesetting, the horizontal distance between symbols keming, noun: poor-quality kerning I've had many mentors who knew less about typesetting than I did. I put them in the same ...
• 74.4k
Accepted

### Using chemical formulas

The $\ce$ command is provided by the mhchem package, which is available in MathJax but currently not loaded by default on Physics or Physics Meta. A workaround is ...
• 74.4k