public override Vec3d this[
	params int[] idx
] { get; set; }

Public Overrides Default Property Item ( 
	ParamArray idx As Integer()
) As Vec3d
	Get
	Set

public:
virtual property Vec3d default[... array<int>^ idx] {
	Vec3d get (... array<int>^ idx) override;
	void set (... array<int>^ idx, Vec3d value) override;
}

abstract Item : Vec3d with get, set
override Item : Vec3d with get, set