<formula>

<formula> 수식 또는 다른 식을 포함한다. 14.2 Formulæ and Mathematical Expressions
모듈figures — 14 Tables, Formulæ, Graphics and Notated Music
속성att.global (@xml:id, @n, @xml:lang, @rend, @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))
notation요소 내용으로 사용되어 앞서 정의된 표기법 이름을 제시한다.
상태 수의적
자료 유형 

<rng:ref name="data.enumerated"/>
data.enumerated
에 의해 사용된
model.graphicLike
에 의해 포함된
analysis: cl phr s
core: abbr add addrLine author biblScope 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
포함할 수 있다
core: binaryObject graphic
figures: formula
선언

<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: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 )*
}
예
<formula notation="tex">$e=mc^2$</formula>