add
Adds value1 to value2 and returns the result as a decimal value. This function can be extended to take additional arguments, see Add or Delete Function Arguments.

Languages
Built-in, C++, C#, Java, XQuery, XSLT 1.0, XSLT 2.0, XSLT 3.0.
Parameters
| Argument | Description | 
|---|---|
| value1 | Mandatory parameter. Provides the first operand. | 
| value2 | Mandatory parameter. Provides the second operand. |