Type of Link


Identifies the kind of link used with an element. For all elements in this DTD that can take links (except the <mml:math> element), this attribute uses the fixed (unchanging) value “simple”, which means that the link is a simple, one-ended link. For the <mml:math> element, the attribute may take any value that describes the link type, for example, a “simple” (one-ended) link, a “locator” link, a “title” link, an “extended” (multi-way) link, etc.


For all elements (except <mml:math>), the value of the attribute is the word “simple” and cannot be changed; it is intended for use by software. For the <mml:math> element, the attribute may take any value, but best practice will restrict the value to one defined in the MathML and XLink specifications; see them for further details.

Attribute Values

In Element

<annotation> Annotation
Value Meaning
simple The link is an XML simple (one-ended) link. (Although this is one of several valid XLink link types, it is the only value permitted by the default Suite.)
Restriction: This attribute value may not be changed.