How do I write a chevron/circum (^) in MathJax? A backslash doesn't work as an escape character.
(Specific context: using x^y to mean XOR as in $x\oplus y$. It's not my choice of notation so don't tell me that I can just use a different symbol.)
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Is $x\hat{}y$ acceptable? Gotten with $x\hat{}y$. In-line I have used
$x$^$y$ which produces $x$^$y$. To get that effect in a displayed formula, an obvious work around is to wrap it in a text box
$$
\text{$x$^$y$}
$$
produced with the snippet $$\text{$x$^$y$}$$.
answered May 14 '20 at 9:26
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$\begingroup$ I'm sure TeXperts know of better ways, but tweaks like that were common in the plainTeX-era. $\endgroup$ May 14 '20 at 9:28
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I'd imagine $\land$ would be the right symbol here as an operator, so \land (logical and) or \wedge will produce $\land$ (and $\wedge$).
But it might not be the same as $x$^$y$ if you write $x\land y$. It's up to you to decide if you like it or not. In either case, be sure to clarify the notation, which normally means "and" rather than "xor".
You can try $x^\land y$ as well.
answered May 14 '20 at 9:50
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$\begingroup$ I can see a typeset version of the symbol (but not its source) and it's definitely a superscript rather than an infix. $\endgroup$– A.M.May 14 '20 at 10:58
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1$\begingroup$ Ah, using a superscript and \land hadn't occurred to me. Good idea. $\endgroup$– A.M.May 14 '20 at 12:16
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$\begingroup$ The spacing above bothers me, as the caret is being parsed as a superscript on $x$. Perhaps $x\mathbin{{}^\land} y$ would work? This is typeset as
$x\mathbin{{}^\land} y$. I also think that\landshould probably be replaced by\wedge(they are synonymous and are typeset identically, but\wedgefeels more general). $\endgroup$– Xander Henderson ModMay 14 '20 at 23:56 -
$\begingroup$ @Xander: Yes, I was also bothered by this. I'd think you suggest the right approach here. Or with a lack of spacing, $x{{}^\wedge\!}y$. $\endgroup$– Asaf Karagila ModMay 15 '20 at 0:01
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The first time you use MathJax in a post, use this command:
\newcommand{\^}{\text{^}}
If you apply it by itself, it will just make a tiny blank space: $\newcommand{\^}{\text{^}}$.
Thenceforth, every time you use \^, you will get a chevron: $x\^y$.
answered May 18 '20 at 18:08