<formula>

<formula> contains a mathematical or other formula. [14.2 Formulæ and Mathematical Expressions]
Modulefigures — 14 Tables, Formulæ, Graphics and Notated Music
Attributesatt.global (@xml:id, @n, @xml:lang, @rend, @style, @rendition, @xml:base, @xml:space) (att.global.linking (@corresp, @synch, @sameAs, @copyOf, @next, @prev, @exclude, @select)) (att.global.analytic (@ana)) (att.global.facs (@facs)) (att.global.change (@change))
notationnames the notation used for the content of the element.
Status Optional
Datatype 

<rng:ref name="data.enumerated"/>
data.enumerated
Member of
model.graphicLike
Contained by
analysis: cl phr s
core: abbr add addrLine author biblScope citedRange corr date del distinct editor email emph expan foreign gloss head headItem headLabel hi item l label measure mentioned name note num orig p pubPlace publisher q quote ref reg rs said sic soCalled speaker stage street term textLang time title unclear
dictionaries: case colloc def dictScrap entryFree etym form gen gram gramGrp hyph iType lang lbl mood number orth per pos pron re sense stress subc syll tns usg xr
drama: actor camera caption castItem role roleDesc sound tech view
figures: cell figure formula table
gaiji: char glyph
header: change distributor edition extent geoDecl handNote licence scriptNote typeNote
linking: ab seg
msdescription: accMat acquisition additions catchwords collation colophon condition custEvent decoNote explicit filiation finalRubric foliation heraldry incipit layout material musicNotation objectType origDate origPlace origin provenance rubric secFol signatures source stamp summary support surrogates watermark
namesdates: addName affiliation birth bloc country death district education faith floruit forename genName geogName nameLink nationality occupation orgName persName placeName region residence roleName settlement sex socecStatus surname
spoken: u writing
textcrit: lem rdg wit witDetail
textstructure: byline closer dateline docAuthor docDate docEdition docImprint imprimatur opener salute signed titlePart trailer
transcr: damage facsimile fw metamark mod restore retrace sourceDoc supplied surface surplus zone
verse: rhyme
May contain
core: binaryObject graphic hi media
figures: formula
Declaration

<rng:element name="formula">
 <rng:ref name="att.global.attributes"/>
 <rng:ref name="att.global.linking.attributes"/>
 <rng:ref name="att.global.analytic.attributes"/>
 <rng:ref name="att.global.facs.attributes"/>
 <rng:ref name="att.global.change.attributes"/>
 <rng:optional>
  <rng:attribute name="notation">
   <rng:ref name="data.enumerated"/>
  </rng:attribute>
 </rng:optional>
 <rng:zeroOrMore>
  <rng:choice>
   <rng:text/>
   <rng:ref name="model.graphicLike"/>
   <rng:ref name="model.hiLike"/>
  </rng:choice>
 </rng:zeroOrMore>
</rng:element>
element formula
{
   att.global.attributes,
   att.global.linking.attributes,
   att.global.analytic.attributes,
   att.global.facs.attributes,
   att.global.change.attributes,
   attribute notation { data.enumerated }?,
   ( text | model.graphicLike | model.hiLike )*
}
Example
<formula notation="tex">$E=mc^2$</formula>
Example
<formula notation="none">E=mc<hi rend="sup">2</hi>
</formula>
Example
<formula notation="mathml">
 <m:math>
  <m:mi>E</m:mi>
  <m:mo>=</m:mo>
  <m:mi>m</m:mi>
  <m:msup>
   <m:mrow>
    <m:mi>c</m:mi>
   </m:mrow>
   <m:mrow>
    <m:mn>2</m:mn>
   </m:mrow>
  </m:msup>
 </m:math>
</formula>