invert_matrix.c File Reference

Invert matrix through QR decomposition. More...

Detailed Description

Invert matrix through QR decomposition.

Author

Pascal Getreuer getre.nosp@m.uer@.nosp@m.cmla..nosp@m.ens-.nosp@m.cacha.nosp@m.n.fr

Copyright (c) 2012-2013, Pascal Getreuer All rights reserved.

This program is free software: you can redistribute it and/or modify it under, at your option, the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version, or the terms of the simplified BSD license.

You should have received a copy of these licenses along with this program. If not, see http://www.gnu.org/licenses/ and http://www.opensource.org/licenses/bsd-license.html.

Definition in file invert_matrix.c.

#include "invert_matrix.h"
#include <assert.h>
#include <math.h>
#include <stdlib.h>

Go to the source code of this file.

Functions
int	invert_matrix (double *inv_A, double *A, int N)
	Invert matrix through QR decomposition. More...

Function Documentation

int invert_matrix	(	double *	inv_A,
		double *	A,
		int	N
	)

Invert matrix through QR decomposition.

Parameters

inv_A	pointer to memory for holding the result
A	pointer to column-major matrix data
N	the number of dimensions

Returns

1 on success, 0 on failure

The input data is overwritten during the computation. inv_A should be allocated before calling this function with space for at least N^2 doubles. Matrices are represented in column-major format, meaning A(i,j) = A[i + N*j], 0 <= i, j < N.

Definition at line 37 of file invert_matrix.c.