This is what chemical equations look like on the stack exchange iOS app:

iOS screenshot

The same content works fine in Safari on iOS.

Am I doing something wrong or is this a bug?

  • $\begingroup$ The biology and Chemistry sites need a different configuration for MathJax, it looks like the iOS app uses the default SE Mathjax configuration which doesn't support chemical formulas. $\endgroup$ Jul 27, 2014 at 14:40
  • $\begingroup$ This is a question that belongs to Meta Stack Exchange (if there is not already an answer). Btw. it is the same in the android app. $\endgroup$ Jul 27, 2014 at 17:47
  • $\begingroup$ meta.stackexchange.com/q/233623/260760 $\endgroup$ Jul 29, 2014 at 8:38

1 Answer 1


Indeed, there was a missing MathJax extension. This will be fixed in the next update to the iOS app in the Appstore.


You must log in to answer this question.

Not the answer you're looking for? Browse other questions tagged .