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CxHess

LabWindows/CVI

CxHess

Advanced Analysis Library Only

AnalysisLibErrType CxHess (void *inputMatrix, ssize_t matrixSize, void *hessenbergMatrix, void *orthogonalMatrix);

Purpose

Calculates the Hessenberg decomposition for a complex matrix A, as follows: A = QHQH, where Q is unitary, H is Hessenberg, and QH is the conjugate transpose of Q.

Parameters

Input
Name Type Description
inputMatrix void * The input matrix A.
matrixSize ssize_t The order of inputMatrix.
Output
Name Type Description
hessenbergMatrix void * The Hessenberg matrix. In place operation is supported. That is, you can call the function with hessenbergMatrix = NULL or hessenbergMatrix = inputMatrix so that the resultant Hessenberg matrix overwrites inputMatrix directly.
orthogonalMatrix void * The unitary matrix Q.

Return Value

Name Type Description
status AnalysisLibErrType A value that specifies the type of error that occurred. Refer to analysis.h for definitions of these constants.

Additional Information

Library: Advanced Analysis Library

Include file: analysis.h

LabWindows/CVI compatibility: LabWindows/CVI 8.0 and later