# MathML 3

Source: https://xmlvalid.com/schemas/mathml-3

> Mathematical formulas in MathML 3, presentation and content markup.

MathML is how formulas travel in JATS articles, EPUB books, DocBook and Word exports. This is the W3C DTD for standalone MathML documents.

- Type: DTD
- Version: 3.0 (second edition)
- Namespace: `http://www.w3.org/1998/Math/MathML`
- Root element: `math`
- Publisher: W3C (W3C Software and Document License), source: https://www.w3.org/TR/MathML3/
- Validate against it: https://xmlvalid.com/validate?schema=mathml-3

## Notes

- Named characters such as ⁢ come from the DTD and are only known when it is read while parsing; use character references.
- The example is by xmlvalid.com.