mathjaxpointersymbols
I am looking for a MathJax equivalent of the Unicode symbol called WHITE RIGHT-POINTING POINTER:
▻
It is a little bit longer than \triangleright, which looks like this:
Also, I wasn't able to find it using http://detexify.kirelabs.org/.
Thanks to marmot I was able to find the LaTeX equivalent: it is called \whitepointerright. It does not work in MathJax, though.
If you have access to Unicode fonts there is U+2BBF (⊿) RIGHT TRIANGLE
Otherwise, picture mode to the rescue:
\documentclass{article}
\usepackage{amsmath}
\def\lr{\mbox{\begin{picture}(7,10)
\put(1,0){\line(1,0){5}}
\put(1,0){\line(1,2){5}}
\put(6,0){\line(0,1){10}}
\end{picture}
}}
\def\ll{\mbox{\begin{picture}(7,10)
\put(1,0){\line(1,0){5}}
\put(6,0){\line(-1,2){5}}
\put(1,0){\line(0,1){10}}
\end{picture}
}}
\begin{document}
\begin{align}
A &= \ll\\
B &= \lr
\end{align}
\end{document}
You can create your own by joining two - and > in math mode:
\documentclass{article}
\makeatletter
\newcommand{\my@arrow}[1]{\ooalign{$#1-\mkern-5mu-$\cr\hidewidth$#1>$}}
\newcommand{\myarrow}{\mathrel{\mathpalette\my@arrow\relax}}
\makeatother
\begin{document}
$A \rightarrow B$ \par
$A \longrightarrow B$ \par
$A -> B$ \par
$A \myarrow B_{A \myarrow B_{A \myarrow B}}$
\end{document}
The use of \mathpalette is explained in The mysteries of \mathpalette. It's used as a helper function for \mathchoice to scale math content to the required style (size).
Best Answer
MathJax is generally considered off-topic here, but you can use
\rhdin LaTeX or in MathJax to get something close to\whitepointerright. The following image is taken from Safari using MathJax:The code renders on Chrome, Firefox, Safari:
with
<head>code:and also works in LaTeX using the
amsfontspackage: