NewtonConjugateGradientOptimizer.HessianEntries Property

Gets or sets a callback that enumerates current lower-triangular objective Hessian entries.

Definition

Namespace: Numerics.NET.Optimization
Assembly: Numerics.NET (in Numerics.NET.dll) Version: 10.9.0

public Action<Vector<double>, Action<int, int, double>> HessianEntries { get; set; }

Visual Basic

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

C++/CLI

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

member HessianEntries : Action<Vector<float>, Action<int, int, float>> with get, set

Property Value

Action<Vector<Double>, Action<Int32, Int32, Double>>

Remarks

Use the original objective sign. Entries must belong to HessianPattern. Sparse entries support IC/MIC preconditioning and can supply products when HessianVectorProduct is absent.

Exceptions

InvalidOperationException

A calculation is underway.

NewtonConjugateGradientOptimizer.HessianEntries Property

Definition

Property Value

Remarks

Exceptions

See Also

Reference