package ComplexCalculator is
--Defines that a complex number has two fields.
type ComplexNumber is record
Real : Integer;
Imaginary : Integer;
end record;
-- Defines the available functions.
function Add(First, Second : ComplexNumber) return ComplexNumber;
function Sub(First, Second : ComplexNumber) return ComplexNumber;
function Multiply(First, Second : ComplexNumber) return ComplexNumber;
function Divide(First, Second : ComplexNumber) return ComplexNumber;
function ToString(Number : ComplexNumber) return String;
end ComplexCalculator;
