<tbx:xMathML>
External MathML
The <tbx:xMathML> element is a hyperlinking element that points,through the @xtarget attribute, to an external location of a mathematical expression in MathML, for example:
<tbx:xMathML xtarget="http://example.com/math/mathsample.html">Sample equation</tbx:xMathML>
Remarks
Content/Display: This element will be rendered in the published text with the label “See:” before it. The element content should contain the desired display text of the link.
Linking: The required @xtarget attribute will hold the URI for the actual link.
Model Description
Text, numbers, or special characters