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DTD W3C · 3.0 (second edition)

MathML 3

Mathematical formulas in MathML 3, presentation and content markup.

Validate with this schema Try it with the example

About

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

Good to know

  • 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.

Files

3 files · 206.9 KB

The validator loads all of these with their folder structure, so includes and imports resolve as published.

Example document

formula.xml · 524 B · valid against this schema

View Open in validator

In CI and from code

The same schema by its name, mathml-3, through the API.

npx @xmlvalid/cli validate "**/*.xml" --schema mathml-3
- uses: xmlvalid/validate-action@v1
  with:
    files: "**/*.xml"
    schema: mathml-3
    api-key: ${{ secrets.XMLVALID_API_KEY }}
curl https://xmlvalid.com/api/v1/validations \
  -H "Authorization: Bearer $XMLVALID_API_KEY" \
  -F document={{ $schema->example ?? 'document.xml' }} -F schema=mathml-3

Free accounts get 100 API validations a month. On Pro, a URL monitor can check a published document against this schema every hour and email you when it breaks. More CI setups