NonlinearProgram.HessianPattern Property

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

C# Copy

public Matrix<double>? HessianPattern { get; set; }

Visual Basic Copy

Public Property HessianPattern As Matrix(Of Double)
	Get
	Set

C++/CLI Copy

public:
property Matrix<double>^ HessianPattern {
	Matrix<double>^ get ();
	void set (Matrix<double>^ value);
}

F# Copy

member HessianPattern : Matrix<float> with get, set

Property Value

Matrix<Double>
A square matrix template, or null. Values are ignored; stored sparse positions, including zeros, define structure.

Use this template when Hessian is null and numerical sparse curvature is desired. A supplied analytical Hessian takes precedence; this template is then ignored. Indexes are snapshotted per solve. No dense Hessian is allocated for a sparse template.