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19 votes
Accepted

How to write physical units

Instead of \mathrm many people misused \ce, because it was shorter to type. Seeing this, the author of ...
mhchem's user avatar
  • 3,316
13 votes
Accepted

Green checkmark or red X with Mathjax/mhchem?

CAVEAT: Due to the use of Unicode, the below may not render properly on all systems, especially mobile devices. (Thanks, Martin!) Green boxed checkmark ...
hBy2Py's user avatar
  • 17.4k
13 votes

FAQ: How can I format math/chemistry expressions on Chemistry Stack Exchange?

(4) Learning by example The MathJax and mhchem syntax in the left-hand side must be enclosed in single dollar signs $...$ for an inline (smaller) equation, or ...
12 votes

Green checkmark or red X with Mathjax/mhchem?

You can use the following for a green check mark since it is implemented in amssymb: $\Large\color{\green}{\checkmark}$ ...
Martin - マーチン's user avatar
12 votes
Accepted

How to render Angstrom and Parts-per notations in MathJax?

For Angstroms, check out: What additional formatting features are available to MathJax (possibly via \require{})? $\require{mediawiki-texvc}$ The $\ce{C-O}$ bond length in carbon dioxide is $\pu{1.16 ...
orthocresol's user avatar
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11 votes

What additional formatting features are available to MathJax (possibly via \require{})?

Command Grouping Enable with: \require{begingroup} Environment: \begingroup ... \endgroup Quite a few things are possible ...
Martin - マーチン's user avatar
11 votes

How can I enable MathJax in chat?

Update 2017-05-01 The MathJax CDN retired and the javascript-URL idea is not so easy any more, because of browser security. (Chrome stips away any leading ...
mhchem's user avatar
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11 votes
Accepted

What additional formatting features are available to MathJax (possibly via \require{})?

As described in the MathJax documentation, any of the core MathJax extensions can be loaded this way (though this can be restricted via the MathJax configuration).
Peter Krautzberger's user avatar
10 votes

What additional formatting features are available to MathJax (possibly via \require{})?

2-D Reaction Networks Enable with: \require{AMScd} Environment: \begin{CD} ... \end{CD} Construct two-dimensional grids ...
10 votes

Green checkmark or red X with Mathjax/mhchem?

A meta answer to a meta question, making it meta². Be careful with conventions like this. They are not as intuitive and universal as you might think. I've seen ✘ Artificial Flavours written on ...
mhchem's user avatar
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10 votes
Accepted

Should we pay attention to possible bugs of MathJax in the apps?

Yes and no. Yes - if the differences are cosmetic. One example of this is \dfrac vs. \frac, the latter of which is better ...
Ben Norris's user avatar
10 votes
Accepted

Using mathrm versus rm MathJax index formatting

\rm shouldn't be used at all as it's a deprecated command existing solely for the backward compatibility. Historically, the two-letter commands such as ...
andselisk's user avatar
  • 38.3k
10 votes
Accepted

Extra spacing before mhchem super/subscripts

This doesn't look right. $\mathrm{|{}^1H|}$ $\mathrm{|{}^1H|}$ and $\mathrm{|\ce{^1H}|}$ $\mathrm{|\ce{^1H}|}$ should give the ...
mhchem's user avatar
  • 3,316
9 votes

What additional formatting features are available to MathJax (possibly via \require{})?

Cancellation Lines Enable with: \require{cancel} Commands: \cancel{}, \bcancel{}, ...
8 votes
Accepted

Mhchem broken on mobile

This bug was caused by /sites route in the stackexchange api not returning MHChemMathJax in markdown_extensions due to ...
m0sa's user avatar
  • 101
8 votes
Accepted

Why two different print styles for the x's?

You are mixing chemistry typeset with maths typeset; I don't think that the mhchem module is set up for this. There is probably much more wrong than what you consider a bug. Assuming $K$ is an ...
Martin - マーチン's user avatar
7 votes

Chemical formulas with fractional numbers are displayed wrongly

This issue has been solved since mid of 2016. $\ce{0.5H2O}$ renders as $\ce{0.5H2O}$. Short background: MathJax is NOT LaTeX. MathJax is a complete re-...
mhchem's user avatar
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7 votes
Accepted

MathJax in the Android App

Unfortunately the app uses a different version than the website. That does include the recent updates to mhchem, especially the \pu{...} command. While ...
Martin - マーチン's user avatar
7 votes

How to render Angstrom and Parts-per notations in MathJax?

There are other possible solutions. Whether they are simpler, I leave for the reader to decide. To write angstrom, you may use \overset{\circ}{\mathrm {A}} which ...
Linear Christmas's user avatar
7 votes
Accepted

What to do if mathrm is hugging physical units?

TL;DR: What is the need of it if mathrm is doing the job properly? – Apoorv Potnis There is no need. There always was a demand for the ...
Martin - マーチン's user avatar
7 votes
Accepted

MathJax mhchem editor

Yes, see Introducing: Markdown Shortcuts for StackExchange. Of course, this doesn't change the fact that you will need to learn a new bunch of shortcuts (or customise them). That is all we really have,...
orthocresol's user avatar
  • 71.5k
6 votes

FAQ: How can I format math/chemistry expressions on Chemistry Stack Exchange?

(3.1) Basic mhchem: Chemical formulae Chemical formulae can be typeset with the \ce{...} command. Note that the \ce{...} command ...
5 votes

Eliminate huge-locant-marked (by \overset) atom side space

Probably not, at least probably not in the way you would like it. As far as I see there is no centering zero-width box implemented in MathJax (in LaTeX one could use makebox with ...
Martin - マーチン's user avatar
5 votes

Is there a site on ChemSE to practice mhchem and mathjax?

We have a couple of posts on meta where you can add an answer and edit as you wish. The first one has been closed because of the large number of answers, which makes editing very difficult as MathJax ...
orthocresol's user avatar
  • 71.5k
5 votes
Accepted

Problem in rendering with arrow

It looks like StackExchange has (apparently recently) added CSS that is causing the problem. In their primary.css file is the declaration ...
Davide Cervone's user avatar
4 votes

What additional formatting features are available to MathJax (possibly via \require{})?

Tooltips and Toggleable Math Enable with: \require{action} Commands: \mathtip{math}{tip} and ...
4 votes

This is a TEST QUESTION, examining MathJax scopes

\require{begingroup} \begingroup $ \require{begingroup} \begingroup \text{begingroup Jax} $ Testing \frac: ...
hBy2Py's user avatar
  • 17.4k
4 votes

What additional formatting features are available to MathJax (possibly via \require{})?

Overlay/Enclosure Annotations Enable with: \require{enclose} $\require{enclose}$ Command: \enclose{type}[options]{math} ...
4 votes

Does the rendering of the precipitation and gas symbols need improvement?

A ‘better’ cheap hack to reduce the distance between the arrow and the formula is to use negative space, \!. $$\begin{array}{lc}\text{Markup} & \text{Output}\\ ...
Jan's user avatar
  • 68.3k

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