ILMatheig Method (InArrayDouble, OutArraycomplex)

public static RetArray<complex> eig(
	InArray<double> A,
	OutArray<complex> V
)

Public Shared Function eig ( 
	A As InArray(Of Double),
	V As OutArray(Of complex)
) As RetArray(Of complex)

Dim A As InArray(Of Double)
Dim V As OutArray(Of complex)
Dim returnValue As RetArray(Of complex)

returnValue = ILMath.eig(A, V)

Parameters

A

Type: ILNumericsInArrayDouble
Input matrix. Size [n x n].

V

Type: ILNumericsOutArraycomplex
[Optional] Output, matrix of eigenvectors of A. Size [n x n]. Default: (null) do not compute. If not null on entry V returns the Eigenvectors.

Return Value

The eigenvalues of A are found by use of the Lapack functions dgeevx, sgeevx, cgeevx and zgeevx.

The matrices returned will be complex, since A may be nonsymmetric. Use eigSymm(InArrayDouble) for computing real eigenvalues of symmetric matrices.

A is internally balanced first. This includes permutations and scaling of A in order to improve the conditioning of the eigenvalues.

[ILNumerics Computing Engine]

Reference