Advanced Analysis Library Only
AnalysisLibErrType CxHess (void *inputMatrix, int matrixSize, void *hessenbergMatrix, void *orthogonalMatrix);
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.
| Input | ||
| Name | Type | Description |
| inputMatrix | numeric array | The input matrix A. |
| matrixSize | integer | The order of inputMatrix. |
| Output | ||
| Name | Type | Description |
| hessenbergMatrix | numeric array | 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 | numeric array | The unitary matrix Q. |
| Name | Type | Description |
| status | AnalysisLibErrType | A value that specifies the type of error that occurred. Refer to analysis.h for definitions of these constants. |