ILMatheigSymm Method (InArrayfcomplex, OutArrayfcomplex, Single, Single)

public static RetArray<float> eigSymm(
	InArray<fcomplex> A,
	OutArray<fcomplex> V,
	float rangeStart,
	float rangeEnd
)

Public Shared Function eigSymm ( 
	A As InArray(Of fcomplex),
	V As OutArray(Of fcomplex),
	rangeStart As Single,
	rangeEnd As Single
) As RetArray(Of Single)

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

returnValue = ILMath.eigSymm(A, V, rangeStart, 
	rangeEnd)

Parameters

A

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

V

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

rangeStart

Type: SystemSingle
Determines the lower limit of the index range of eigenvalues to be returned.

rangeEnd

Type: SystemSingle
Determines the upper limit of the index range of eigenvalues to be returned.

Return Value

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

[ILNumerics Computing Engine]

Reference