# What is Mathjax: Definition and 14 Discussions

MathJax is a cross-browser JavaScript library that displays mathematical notation in web browsers, using MathML, LaTeX and ASCIIMathML markup. MathJax is released as open-source software under the Apache License.
The MathJax project started in 2009 as the successor to an earlier JavaScript mathematics formatting library, jsMath, and is managed by the American Mathematical Society. The project was founded by the American Mathematical Society, Design Science, and the Society for Industrial and Applied Mathematics and is supported by numerous sponsors such as the American Institute of Physics and Stack Exchange.MathJax is used by web sites including arXiv, Elsevier's ScienceDirect, MathSciNet, n-category cafe, MathOverflow, Wikipedia (on the backend), Scholarpedia, Project Euclid journals, IEEEXplore, Publons, Coursera, and the All-Russian Mathematical Portal.

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1. ### LaTeX Trying to write in LaTex and MathJax not picking up

I'm attempting to use latex to write a question in the physics forum. However, when I click preview to check if the formatting is correct it doesn't reformat to display in its latex form, rather it stays in plain text. Any suggestions on what I may be doing wrong? I've posted the screenshots...

13. ### Maple MathJax, already in use here, now in AIP journals

We are happy to announce a new partnership between MathJax and AIP Publishing. MathJax is an open-source JavaScript display engine that produces high-quality math in all modern browsers, without plug-ins or other special set-up requirements, which is why it works so great on Physics Forums...
14. ### LaTeX Solving Latex (MathJax) Bug - Partial Derivatives

This doesn't work properly: \begin{array} \frac {\partial}{\partial a^1} = \cdots \\ \frac {\partial}{\partial a^2} = \cdots \\ \frac {\partial}{\partial a^3} = \cdots \end{array} It gives \begin{array} \frac {\partial}{\partial a^1} = \cdots \\ \frac {\partial}{\partial a^2}...