eig_lapack.c File Reference

#include <stdio.h>
#include <math.h>
#include "mbs_errors_names.h"
#include "mbs_message.h"
#include "useful_functions.h"
#include "lapacke.h"

Classes
struct	complex_float
	Implementation of eig function using lapacke without using the lapackE interface. More...
struct	complex_double

Macros
#define	lapack_complex_float   struct complex_float
#define	lapack_complex_double   struct complex_double

Functions
int	mbs_eig_0 (double **A, int n, double *eval_a, double *eval_b, double **evec_a, double **evec_b)
	Compute the eigen values and vector of a matrix with index starting a 0. More...

Macro Definition Documentation

lapack_complex_double

#define lapack_complex_double   struct complex_double

lapack_complex_float

#define lapack_complex_float   struct complex_float

Function Documentation

mbs_eig_0()

int mbs_eig_0	(	double **	A,
		int	n,
		double *	eval_a,
		double *	eval_b,
		double **	evec_a,
		double **	evec_b
	)

Compute the eigen values and vector of a matrix with index starting a 0.

Parameters

[in]	A	matrix for the Eigenvalue problem.
[in]	n	size of the matrix
[out]	eval_a	Result of the Eigenvalue problem: real part of the 2*nx eigen values [n X 1]
[out]	eval_b	Result of the Eigenvalue problem: imag part of the 2*nx eigen values [n X 1]
[out]	evec_a	Result of the Eigenvalue problem: real part of the eigen vectors (each column is a eigenvector) [n X n]
[out]	evec_b	Result of the Eigenvalue problem: imag part of the eigen vectors (each column is a eigenvector) [n X n]

Returns

Error status, <0 in case of failure.