# The MML3 extension¶

The experimental MML3 extension is run when you include mml3.js in the extension array of the MathML section of your MathJax.Hub.Config() call. For example,

MathJax.Hub.Config({
MathML: {
extensions: ["mml3.js"]
}
});


The extension provides experimental support for the so-called elementary math elements as well as experimental support for bidirectional math.

The extension has no configuration options.