The XML Path Language (XPath) syntax supports Number functions that return strings or numbers and can be used with comparison operators in filter patterns.
ceiling | Returns the smallest integer that is not less than the argument. |
floor | Returns the largest integer that is not greater than the argument. |
number | Converts the argument to a number. |
round | Returns an integer closest in value to the argument. |
sum | Returns the sum of all nodes in the node-set. Each node is first converted to a number value before summing. |