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OperatorDescriptionExampleReturn 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 =9.80 true if price is 9.90 false if price is ..