eigen_tools.c File Reference

#include <grass/gis.h>
#include <math.h>

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Macros
#define	MAX_ITERS   30
#define	SIGN(a, b)   ((b)<0 ? -fabs(a) : fabs(a))

Functions
int	G_tqli (double d[], double e[], int n, double **z)
void	G_tred2 (double **a, int n, double d[], double e[])

Macro Definition Documentation

#define MAX_ITERS   30

Definition at line 5 of file eigen_tools.c.

Referenced by G_tqli().

#define SIGN	(		a,
			b
	)		((b)<0 ? -fabs(a) : fabs(a))

Definition at line 6 of file eigen_tools.c.

Referenced by G_tqli().

Function Documentation

int G_tqli	(	double	d[],
		double	e[],
		int	n,
		double **	z
	)

Definition at line 9 of file eigen_tools.c.

References b, g, l, MAX_ITERS, n, r, dialogs::s, and SIGN.

Referenced by eigen().

void G_tred2	(	double **	a,
		int	n,
		double	d[],
		double	e[]
	)

Definition at line 77 of file eigen_tools.c.

References g, dialogs::h, l, and n.

Referenced by eigen().