+ (addition) - (subtraction) * (multiplication) / (division) ^ (exponentiation) div (integer division) mod (modulo) = (test for equality) <> (test for inequality) < (test for less than) > (test for greater than) <= (test for less than or equal to) >= (test for greater than or equal to) is (test for equality) is not (test for inequality) and (logical and) or (logical or) not (logical not) & (string concatenation) && (string concatenation) is in (test for substring presence) contains (test for substring presence) is not in (test for substring absence) begins with (test for substring presence) ends with (test for substring presence) ( ) (operator grouping) is within (test whether a point is within a rectangle) is not within (test whether a point is not within a rectangle) is a (test whether object or data is of a certain type) is not a (test whether object or data is not of a certain type) there is a (test for existence of an object or file) there is not a (test for existence of an object or file) there is no (test for existence of an object or file)