ILNumerics Ultimate VSILMatheigSymm Method (InArrayfcomplex)ILNumerics Ultimate VS Documentation
ILNumerics - Technical Application Development
Find all eigenvalues of symmetric / hermitian matrix.

[ILNumerics Computing Engine]

Namespace: ILNumerics
Assembly: ILNumerics.Computing (in ILNumerics.Computing.dll) Version: 5.3.0.0 (5.3.7131.2749)
Syntax

public static RetArray<float> eigSymm(
	InArray<fcomplex> A
)

Parameters

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

Return Value

Type: RetArraySingle
Array of size [n,1] with eigenvalues of A in ascending order.
Exceptions

ExceptionCondition
ArgumentExceptionif A is not square.
Remarks

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

Since A is symmetric the eigenvalues and the array returned have the same real/fcomplex element type as A.

[ILNumerics Computing Engine]

See Also

Reference

MathInternal.eig(InArrayfcomplex, OutArrayfcomplex, MatrixProperties, Boolean)