<munderover>

Baseline Widely available

This feature is well established and works across many devices and browser versions. It’s been available across browsers since ⁨January 2023⁩.

The<munderover>MathML element is used to attach accents or limits both under and over an expression.

It uses the following syntax:<munderover> base underscript overscript </munderover>

Attributes

This element's attributes include theglobal MathML attributes as well as the following attributes:

accent: A<boolean> indicating whether the over script should be treated as an accent (i.e., drawn bigger and closer to the base expression).
accentunder: A<boolean> indicating whether the under script should be treated as an accent (i.e., drawn bigger and closer to the base expression).

Examples

html

<math display="block">  <munderover>    <mo>∑</mo>    <mrow>      <mi>n</mi>      <mo>=</mo>      <mn>1</mn>    </mrow>    <mrow>      <mo>+</mo>      <mn>∞</mn>    </mrow>  </munderover></math>