Role of <mtable>
Creates a mathematical table or matrix layout. Use the element for its semantic role rather than as a visual styling shortcut. Assistive technology, browser math layout, conversion tools, and copy-and-paste behavior all depend on the markup preserving the mathematical structure.
Example markup
<mtable><mtr><mtd><mn>1</mn></mtd></mtr></mtable>Allowed children
mtr and mlabeledtr
Only place children inside <mtable> when they match the element's content model. Validate the complete MathML tree after conversion because a locally valid fragment can still be incorrect in its parent context.
Implementation notes
- Use surrounding mo elements for matrix delimiters.
Accessibility and testing
- Keep a meaningful DOM structure instead of replacing the expression with an image.
- Test keyboard selection, screen-reader output, browser rendering, and conversion back to LaTeX.
- Check that fallbacks do not expose raw tags or omit the mathematical relationship represented by <mtable>.