NonlinearProgram.ObjectiveHessianVectorProduct Property

public Action<Vector<double>, Vector<double>, Vector<double>>? ObjectiveHessianVectorProduct { get; set; }

Public Property ObjectiveHessianVectorProduct As Action(Of Vector(Of Double), Vector(Of Double), Vector(Of Double))
	Get
	Set

public:
property Action<Vector<double>^, Vector<double>^, Vector<double>^>^ ObjectiveHessianVectorProduct {
	Action<Vector<double>^, Vector<double>^, Vector<double>^>^ get ();
	void set (Action<Vector<double>^, Vector<double>^, Vector<double>^>^ value);
}

member ObjectiveHessianVectorProduct : Action<Vector<float>, Vector<float>, Vector<float>> with get, set

Property Value

Used by NewtonConjugateGradient. Write every destination component in the original objective convention, for both minimization and maximization. No full Hessian is required. An explicitly supplied Gauss-Newton curvature approximation is also supported; keep the objective and gradient callbacks faithful to the original function. Do not modify or retain the point or input direction. Buffers are distinct and reused by the solver.

Reference