From http://www.w3schools.com (Copyright Refsnes Data)
An XPath expression returns either a node-set, a string, a Boolean, or a number.
Below is a list of the operators that can be used in XPath expressions:
| Operator | Description | Example | Return value |
| | | Computes two node-sets | //book | //cd | Returns a node-set with all book and cd elements |
| + | Addition | 6 + 4 | 10 |
| - | Subtraction | 6 - 4 | 2 |
| * | Multiplication |
6 * 4 |
24 |
| div | Division | 8 div 4 | 2 |
| = | Equal | price=9.80 |
true if price is 9.80 false if price is 9.90 |
| != | Not equal | price!=9.80 |
true if price is 9.90 false if price is 9.80 |
| < | Less than | price<9.80 |
true if price is 9.00 false if price is 9.80 |
| <= | Less than or equal to | price<=9.80 |
true if price is 9.00 false if price is 9.90 |
| > | Greater than | price>9.80 |
true if price is 9.90 false if price is 9.80 |
| >= | Greater than or equal to | price>=9.80 |
true if price is 9.90 false if price is 9.70 |
| or | or | price=9.80 or price=9.70 |
true if price is 9.80 false if price is 9.50 |
| and | and | price>9.00 and price<9.90 |
true if price is 9.80 false if price is 8.50 |
| mod | Modulus (division remainder) | 5 mod 2 | 1 |
From http://www.w3schools.com (Copyright Refsnes Data)