ILMatheigSymm Method (InArrayfcomplex, OutArrayfcomplex)

public static RetArray<float> eigSymm(
	InArray<fcomplex> A,
	OutArray<fcomplex> V = null
)

Public Shared Function eigSymm ( 
	A As InArray(Of fcomplex),
	Optional V As OutArray(Of fcomplex) = Nothing
) As RetArray(Of Single)

Dim A As InArray(Of fcomplex)
Dim V As OutArray(Of fcomplex)
Dim returnValue As RetArray(Of Single)

returnValue = ILMath.eigSymm(A, V)

Parameters

A

Type: ILNumericsInArrayfcomplex
Input matrix, Size [n x n], symmetric (hermitian for fcomplex A).

V (Optional)

Type: ILNumericsOutArrayfcomplex
Output: n eigenvectors in ascending order as columns. Size [n x n]. If V is null on input, the eigenvectors will not be computed.

Return Value

For computation the Lapack functions cheevr, ssyevr, chesvr and zheesv are used.

Since A is symmetric, eigenvalues are real. The return value will be of the same real/fcomplex type as A.

[ILNumerics Computing Engine]

Reference