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3x3matrix_eigen.h File Reference

#include <gandalf/linalg/3x3matrix.h>
#include <gandalf/common/complex.h>

Go to the source code of this file.

Functions

Gan_Bool gan_mat33_eigen (Gan_Matrix33 *A, Gan_Complex W[3], Gan_Matrix33 *VL, Gan_Matrix33 *VR)
 Computes eigenvalues and eigenvectors of a 3x3 matrix.


Detailed Description

Module: 3x3 matrix eigenvalues and eigenvectors (double precision)

Part of: Gandalf Library

Revision: Last edited: Author:

Copyright: (c) 2000 Imagineer Software Limited


Function Documentation

Gan_Bool gan_mat33_eigen Gan_Matrix33   A,
Gan_Complex    W[3],
Gan_Matrix33   VL,
Gan_Matrix33   VR
 

Computes eigenvalues and eigenvectors of a 3x3 matrix.

Parameters:
A Pointer to the input 3x3 matrix
W 3-vector of complex eigenvalues
VL 3x3 matrix of left eigenvectors or NULL
VR 3x3 matrix of right eigenvectors or NULL
Returns:
GAN_TRUE on success, GAN_FALSE on failure.
Computes the eigenvalues and optionally the left and/or right eigenvectors of 3x3 matrix A. If either of the eigenvector matrices VL or VR are NULL, the corresponding eigenvectors are not computed.

See also:
gan_clapack_geev()


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