math:highest()
math:highest() returns the node in the specified node-set with the highest value (where the highest value calculated using math:max()).
A node has this maximum value if converting its string value to a number equals the maximum value.
Syntax
math:highest(nodeSet)
Parameters
nodeSet-
The node-set whose highest value is to be returned.
Return value
A result tree fragment consisting of copies of the nodes returned by math:max().