# The Content MathML extension¶

The options below control the operation of the Content MathML extension that is run when you include "MathML/content-mathml.js" in the extension array of your configuration. They are listed with their default values. To set any of these options, include a Content-MathML section in your MathJax.Hub.Config() call.

MathJax.Hub.Config({
"content-mathml": {
collapsePlusMinus: true,
cistyles: {
vector: 'bold-italic',
matrix: 'bold-upright'
},
symbols: {
gamma: '\u03B3'
}
}
});


These options allow the following.

collapsePlusMinus: true,

Specifies whether a Plus followed by a Minus is collapsed, e.g., a+(-b) simplified to a-b.

cistyles: {...}

Specifies which mathvariant to use with corresponding <ci> type attribute.

symbols: {...}

Specifies symbol names to translate to characters.

Further customization is possible by modifying its functions on the fly.