public Complex(
	double r,
	double i = 0
)Public Sub New ( 
	r As Double,
	Optional i As Double = 0
)public:
Complex(
	double r, 
	double i = 0
)new : 
        r : float * 
        ?i : float 
(* Defaults:
        let _i = defaultArg i 0
*)
-> Complex