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21h
comment Is it possible to create the attached image in MathJax?
Your table can be produced by the code in this gist. I'm not able to post it as an answer, since this has been (correctly) closed as off topic, but thought I'd post the gist anyway. If you really need the sans-serif font, change the first line to \let\fnt=\sf. I wasn't sure if you needed the blue background, so I included it just in case.
May
25
comment Getting superscripts in math mode without the ^ character
@barbarabeeton, thanks for pointing out where the comment came from. I misread the citation to mean that egreg said that your approach with \let wasn't portable. Clearly I wasn't paying enough attention that day!
May
25
comment Getting superscripts in math mode without the ^ character
@ChristianHupfer, sorry, I tagged the wrong user, and didn't notice until after I could no longer edit the comment. It was apparently egreg who made the comment (as noted in Barbara's answer above, though I don't see egreg's original note to that effect). My apologies.
May
22
comment Getting superscripts in math mode without the ^ character
@ChristianHupfer, MathJax does handle \let\sp=^, so I'm not sure where that claim is coming from. MathJax's \let only works to set a control sequence name, not another character, so you can't do \let!=^, for example, but setting \sp would certainly work. Perhaps that is the source of the claim.
May
22
comment Getting superscripts in math mode without the ^ character
If your page is pre-processed before being sent to the browser, you might be able to use ^ in place of the ^ (either in your math expressions, or in the definition of \sp) in order to get past the pre-processing of ^. This is will be converted to the circumflex by the browser, but is not a literal ^ in the source file.
Mar
13
answered cup with a dot in it - but in mathjax!
Jan
27
comment Different size brackets for binomial coefficient in inline mode using MathJax
This issue is fixed in v2.5 (currently in beta, with the official release very soon now).
Jan
3
awarded  Editor
Jan
3
revised \left and \right brackets way too huge!
Fix typo
Jan
3
comment \left and \right brackets way too huge!
Thanks, I didn't realize that!
Jan
3
answered \left and \right brackets way too huge!
Nov
1
awarded  Yearling
Sep
24
awarded  Autobiographer
Sep
14
comment Subscripts on Variables uneven
Indeed, this is a bug in MathJax's HTML-CSS output, which is being fixed in the next release. See the issue tracker for this problem.
Mar
2
comment why are math fonts (traditionally) italic/slant? and Greek non-italic?
I would not use \text for this in MathJax. That gives the wrong semantics, for one thing. It would be easier to use \mathrm{...} around the whole equation rather than having to wrap each symbol individually. That could even be done in a pre-filter for the TeX input jax. But this is the wrong forum for that discussion.
Mar
2
comment why are math fonts (traditionally) italic/slant? and Greek non-italic?
It is not just for those two, but also things like "the monomial ax", and in general makes it visually apparent for any mathematics so that it is easier to scan the sentence. As for numbers, these are already distinct from the letters, so there is no need to italicize them, and vectors being bold distinguishes them.
Mar
2
answered why are math fonts (traditionally) italic/slant? and Greek non-italic?
Feb
20
awarded  Commentator
Feb
20
comment Why does \text only affect next charater, but \cal affects all that follow
At this point it is probably too late, as there is substantial content with $$, and from the standpoint of ease of typing, I suspect most users on the SE sites that offer MathJax would prefer $$ to the longer \begin{...} forms. These are mainly people trying to get some math into their posts, not TeX purists as I would expect is more the case here. In any case, I have nothing to do with making the decisions at SE.
Feb
20
comment Why does \text only affect next charater, but \cal affects all that follow
MathJax does accept \[...\], but StackExchange has disabled it because of bad interactions with Markdown.