The MathML mrow 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.
This example demonstrates a simple usage of the mrow element:
<math> <mrow> <mn> 1 </mn> <mo> + </mo> <mn> 1 </mn> </mrow> <mrow> <mo> ( </mo> <mrow> <mi> x </mi> <mo> , </mo> <mi> y </mi> </mrow> <mo> ) </mo> </mrow> </math>
- MathML 3.0
- W3C Recommendation
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.
- It allows for more intelligent line-breaking and indentation.
- It simplifies the interpretation of the expression by automated systems such as computer algebra systems and audio renderers.
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