Alternate Text (MathML 2.0 DTD)


See documentation for the Mathematical Markup Language (MathML) 2.0 DTD.


This alttext attribute is used only within mathematical expressions. The equivalent function, providing a textual word or phrase that can be displayed “behind” a graphic or pronounced over a graphic, is accomplished using the <alt-text> element for graphics (and other elements) in this DTD.

Attribute Values

In Element

<mml:math> Math (MathML 2.0 DTD)
Value Meaning
Text, numbers, or special characters See MathML documentation.
Restriction: This attribute may be specified if the element is used.