2.1.1 Complex class: instance creation
- Return the imaginary unit, -1 sqrt.
- Initialize some common complex numbers.
- This method should not be called for instances of this class.
- real: re imaginary: im
- Return a complex number with the given real and imaginary parts.
- realResult: re imaginary: im
- Private - Return a new complex number knowing that re and im have the
- rho: dist theta: angle
- Return a complex number whose absolute value is dist and whose
argument is angle.