# Question: Define and operator that given a rational number returns the

Define and operator that, given a rational number, returns the cube of that number,

## Answer to relevant Questions

Define a read-only operator that, given a point with Cartesian coordinates x and y, returns the point with Cartesian coordinates f(x) and g(y), where f and g are predefined operators.We pointed out that it is strictly incorrect to say that (e.g.) the quantity for a certain shipment is 100 (“a quantity is a value of type QTY, not a value of type INTEGER”). As a consequence, inasmuch as it pretends ...Write an expression that returns true if the current value of the parts relvar P is empty and false otherwise. Do not use the is-empty shorthand. Which of the relational operators defined in this chapter have a definition that does not rely on tuple equality?Let r be the relation denoted by the following expression; SP group () as x Show what r looks like, given our usual sample value for SP. Also, show the result of; r ungroup xPost your question