lapl.c File Reference

#include <math.h>
#include <float.h>
#include "def.h"
#include "struct.h"
#include "internal_proto.h"

Go to the source code of this file.

Functions
int	lapgen (int nx, int ny, int nz, cooMat *Acoo)
	Laplacean Matrix generator. More...
int	exeiglap3 (int nx, int ny, int nz, double a, double b, int *m, double **vo)
	Exact eigenvalues of Laplacean in interval [a b]. More...

Function Documentation

int exeiglap3	(	int	nx,
		int	ny,
		int	nz,
		double	a,
		double	b,
		int *	m,
		double **	vo
	)

Exact eigenvalues of Laplacean in interval [a b].

---

Parameters

[in]	nx	Number of points in x-direction
[in]	ny	Number of points in y-direction
[in]	nz	Number of points in z-direction
[in]	a	Left bound
[in]	b	Right bound
[out]	m	number of eigenvalues found
[out]	**vo	pointer to array of eigenvalues found

Definition at line 83 of file lapl.c.

References Malloc, PI, Realloc, and sort_double().

Referenced by main().

Here is the call graph for this function:

Here is the caller graph for this function:

int lapgen	(	int	nx,
		int	ny,
		int	nz,
		cooMat *	Acoo
	)

Laplacean Matrix generator.

---

Parameters

[in]	nx	Number of points in x-direction
[in]	ny	Number of points in y-direction
[in]	nz	Number of points in z-direction
[out]	*Acoo	matrix in coordinate format.

Definition at line 17 of file lapl.c.

References _cooMat::ir, _cooMat::jc, Malloc, _cooMat::ncols, _cooMat::nnz, _cooMat::nrows, and _cooMat::vv.

Referenced by main().

Here is the caller graph for this function: