• • MIME type: text/mathml, application/mathml+xml
  • MathML mathematical markup language.
  • Used for integrating mathematical formulas in web documents.
  • Rendering of embedded MathML is supported by a number of browsers and browser additions.
  • Specifies the presentation and the semantic content of mathematical formulas.
  • XML-based format.
  • Based on a draft that was derived from the Wolfram typesetting language.
  • Introduced in 1999 and updated in 2003 by the W3C math working group.

• Import ["file.mml"] imports a MathML file and returns a box expression.
• Export ["file.mml",expr] exports an arbitrary expression to MathML.
• Import ["file.mml"] reads the MathML presentation elements from a file and converts them to the corresponding Wolfram Language box expression.
• Import ["file.mml","Expression"] converts MathML to a Wolfram Language expression using TraditionalForm interpretation rules.
• Export ["file.mml",expr] converts a box expression or an arbitrary Wolfram Language expression to MathML.
• When exporting an arbitrary mathematical expression, its presentation and its context are represented in the resulting MathML.
• Import ["file.mml",elem] imports the specified element from a MathML file.
• Import ["file.mml",{{elem₁,elem₂,…}}] imports multiple elements.
• The import format can be specified with Import ["file", "MathML"] or Import ["file",{"MathML",elem,…}].
• Export ["file.mml",expr, elem] creates a MathML file by treating expr as specifying element elem.
• Export ["file.mml",{expr₁,expr₂,…},{{elem₁,elem₂,…}}] treats each expr_i as specifying the corresponding elem_i.
• Export ["file.mml",expr,opt₁->val₁,…] exports expr with the specified option elements taken to have the specified values.
• Export ["file.mml",{elem₁->expr₁,elem₂->expr₂,…},"Rules"] uses rules to specify the elements to be exported.
• The export format can be explicitly specified in the form Export ["file",expr,"MathML"] or Export ["file",expr,{"MathML",elems}].
• See the following reference pages for full general information:
• Import , Export import from or export to a file
  CloudImport , CloudExport import from or export to a cloud object
  ImportString , ExportString import from or export to a string
  ImportByteArray , ExportByteArray import from or export to a byte array

• General Import elements:
• "Elements" list of elements and options available in this file
  "Summary" summary of the file
  "Rules" list of rules for all available elements
• Data representation elements:
• "Boxes" MathML typeset as a Wolfram Language box expression
  "Expression" arbitrary Wolfram Language expression
  "HeldExpression" unevaluated expression
  "XMLObject" MathML as a symbolic XML expression
  "XMLElement" nested XMLElement objects
• Import and Export use the "Boxes" element by default.

• Export options:
• "Annotations" {} which annotations to include
  "Presentation" True whether to export MathML presentation elements
  "Content" False whether to export MathML content elements
• The setting for "Annotations" is a list which may include any number of the choices "DocumentHeader", "XMLDeclaration", and "DOCTYPEDeclaration".

Basic Examples  (2)