XQuery Extension Modules - eXist: A NoSQL Database and Application Development Platform - page 509

return
mail:send-email ( $ session , $ message )
map
Description
map data type functions
Namespace
map="http://www.w3.org/2005/xpath-functions/map"
Type/default status
Java; enabled in $EXIST_HOME/conf.xml
Class
org.exist.xquery.functions.map.MapModule
This module supports the map data type, as described in “The map data type proposed
for XQuery 3.1” on page 116 .
math
Description
Mathematical functions
Namespace
math="http://exist-db.org/xquery/math"
Type/default status
Java; enabled in $EXIST_HOME/conf.xml ; enabled in $EXIST_HOME/extensions/
build.properties
Class
org.exist.xquery.modules.math.MathModule
This module includes various mathematical functions like sin , pi , and exp .
This module is now deprecated by the math functions from the
namespace http://www.w3.org/2005/xpath-functions/math as
defined by the XPath and XQuery Functions and Operators 3.0
specification .