Returns the performance index of a real symmetric eigensystem.

Namespace: Imsl.Math
Assembly: ImslCS (in ImslCS.dll) Version: 6.5.0.0

Syntax

C#
public double PerformanceIndex(
	double[,] a
)
Visual Basic (Declaration)
Public Function PerformanceIndex ( _
	a As Double(,) _
) As Double
Visual C++
public:
double PerformanceIndex(
	array<double,2>^ a
)

Parameters

a
Type: array< System..::.Double ,2>[,](,)[,]
A double symmetric matrix.

Return Value

A double scalar value indicating how well the algorithms which have computed the eigenvalue and eigenvector pairs have performed.

Remarks

A performance index less than 1 is considered excellent, 1 to 100 is good, while greater than 100 is considered poor.

See Also