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