<mrow>
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 <mrow> MathML element is used to group sub-expressions, which usually contain one or more operators with their respective operands (such as <mi> and <mn>). This element renders as a horizontal row containing its arguments.
When writing a MathML expression, you should group elements within an <mrow> in the same way as they are grouped in the mathematical interpretation of the expression. Proper grouping helps the rendering of the expression in several ways:
- It can improve the display by possibly affecting spacing and preventing line breaks.
- It simplifies the interpretation of the expression by automated systems such as computer algebra systems and audio renderers.
Attributes
This element accepts the global MathML attributes.
Examples
html
<math display="block">
<mfrac>
<mrow>
<!-- numerator content grouped in one mrow -->
<mn>1</mn>
<mo>+</mo>
<mi>K</mi>
</mrow>
<mrow>
<!-- denominator content grouped in one mrow -->
<mn>3</mn>
<mrow>
<!-- fenced expression grouped in one mrow -->
<mo>(</mo>
<mrow>
<!-- fenced content grouped in one mrow -->
<mi>x</mi>
<mo>+</mo>
<mi>y</mi>
</mrow>
<mo>)</mo>
</mrow>
</mrow>
</mfrac>
</math>
Technical summary
| Implicit ARIA role | None |
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Specifications
| Specification |
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| MathML Core # horizontally-group-sub-expressions-mrow |
Browser compatibility
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mrow
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Legend
Tip: you can click/tap on a cell for more information.
- Full support
- Full support
See also
- Grouping HTML elements:
<div>