MathML: presentation markup

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• describe mathematical notation structure.
• 28 elements, more than 50 attributes.
• generally, each presentation element corresponds to a single kind of ``layout schema'' (two-dimensional notational devide, such as row, superscript, underscript)
• variants are expressed via attributes.

List of the elements

• Token elements

  <mi>

  identifier

  <mn>

  number

  <mo>

  operator, fence, or separator

  <mtext>

  text

  <mspace/>

  space

  <ms>

  string literal

• General layout schemata

  <mrow>

  group any number of subexpressions horizontally

  <mfrac>

  form a fraction from two subexpressions

  <msqrt>

  form a square root sign (radical without an index)

  <mroot>

  form a radical with specified index

  <mstyle>

  style change

  <merror>

  enclose a syntax error message from a preprocessor

  <mpadded>

  adjust space around content

  <mphantom>

  make content invisible but preserve its size

  <mfenced>

  surround content with a pair of fences

• Script and limit schemata

  <msub>

  attach a subscript to a base

  <msup>

  attach a superscript to a base

  <msubsup>

  attach a subscript-superscript pair to a base

  <munder>

  attach an underscript to a base

  <mover>

  attach an overscript to a base

  <munderover>

  attach an underscript-overscript pair to a base

  <mmultiscripts>

  attach prescripts and tensor indices to a base

• Tables and matrices

  <mtable>

  table or matrix

  <mtr>

  row in a table or matrix

  <mtd>

  one entry in a table or matrix

  <maligngroup/>

  alignment marker

  <malignmark/>

  alignment marker

• Enlivening Expressions

  <maction>

  bind actions to a subexpression

Examples of presentation attributes in the DTD

fontsize

size of the font;

fontweight

normal, or bold;

fontstyle

normal or italic;

fontfamily

name of the font;

color

color expressed in some model;

form

prefix, infix, postfix;

fence

true, false;

separator

true, false;

lspace

left space;

rspace

right space;

stretchy

true, false;

symmetric

true, false;

maxsize

maximum size;

minsize

minimum size;

largeop

true, false;

movablelimits

true, false;

accent

true, false;

width

width of structure;

height

height of structure;

depth

depth of structure.

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