Is it possible to define a command in MathJax config

[Elim Qiu]

\documentclass{article}

For example, add a math symbol parallelogram.....

\usepackage[pdf]{pstricks}

\newcommand\parallelogram[1][2]{%
\psset{unit=#1pt}
\begin{pspicture}(4,3)
\pspolygon(0,0)(3,0)(4,3)(1,3)
\end{pspicture}}

\begin{document}
This is a parallelogram \parallelogram. Is it cool? Yes! How about the bigger one \parallelogram[10]? Is it cooler? Yes!

\end{document}

================

Thanks for your help!

[Davide Cervone]

MathJax does not have a pstricks extension (and is unlikely to in the future), so there is no configuration to provide what your LaTeX document does.

On the other hand, there is a parallelogram unicode symbol (U+25B1 or U+25B0 for a solid one), so you could use

\newcommand\parallelogram{\unicode{x25B1}}

to get your parallelogram, and \large\parallelogram up to \Huge\parallelogram to get it in different sizes.  Perhaps that will be sufficient?

Davide

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[Elim Qiu]

Thanks a lot Davide. Your suggestion works for me very well!