# <mroot>

The MathML `<mroot>` element is used to display roots with an explicit index. Two arguments are accepted, which leads to the syntax: `<mroot> base index </mroot>`.

## Attributes

class, id, style

Provided for use with stylesheets.

`displaystyle`

A Boolean value specifying whether more vertical space is used for displayed equations or, if set to `false`, a more compact layout is used to display formulas. The main effect is that larger versions of operators are displayed, when `displaystyle` is set to `true`. See also `movablelimits` on `<mo>`.

href

Used to set a hyperlink to a specified URL.

mathbackground

The background color. You can use `#rgb`, `#rrggbb` and HTML color names.

mathcolor

The text color and also the color of the root symbol itself. You can use `#rgb`, `#rrggbb` and HTML color names.

## Examples

Sample Rendering:

Rendering in your browser: $\sqrt[3]{x}$

``````<math>

<mroot>
<mi>x</mi>
<mn>3</mn>
</mroot>

</math>
``````

## Specifications

Specification
MathML Core
• `<msqrt>` (Square root without an index)