| ## Text Encoding Initiative
### The XML Version of the TEI Guidelines # <formula>

`<formula>` | contains a mathematical or other formula.
Attributes | (In addition to global attributes and those inherited from phrase)
`notation` | supplies the name of a previously defined notation used for the content of the element.
| Datatype: %formulaNotations;
| Values: The name of a formal notation previously declared in the document type declaration.
| Default: #REQUIRED

Example

Module Declared in file teifig2; Additional tag set for figures, tables and formulae: enabled by TEI.figures
Class phrase
Data Description The content model for this element is specified by the parameter entity formulaContent, the default value of which is `#PCDATA`.
May contain #PCDATA
May occur within ab abbr activity actor add addName addrLine admin affiliation author authority bibl biblScope birth bloc byline camera caption case castItem catDesc cell channel cl classCode closer colloc constitution corr country creation damage date dateRange def del derivation descrip dictScrap distance distinct distributor docAuthor docDate docEdition docImprint domain edition editor education emph entryFree etym expan extent factuality figDesc firstLang foreName foreign form funder fw gen genName gloss gram gramGrp head headItem headLabel hi hyph imprimatur interaction item itype l label lang langKnown language lbl lem locale measure meeting mentioned mood name nameLink note num number occasion occupation opener orgDivn orgName orgTitle orgType orig orth otherForm p per persName phr placeName pos preparedness principal pron pubPlace publisher purpose q quote rdg re ref reg region rendition residence resp restore role roleDesc roleName rs s salute seg sense settlement sic signed soCalled socecStatus sound speaker sponsor stage street stress subc supplied surname syll symbol tagUsage tech term time timeRange title titlePart tns tr trailer trans u unclear usg view wit witDetail witness writing xr xref
Declaration

    <!ELEMENT formula %om.RR; %formulaContent;>
    <!ATTLIST formula
          %a.global;
          notation %formulaNotations; #REQUIRED>

See further 22.2 Formulae and Mathematical Expressions

Up: 35 Elements