NAME

lis_array_mgs - calculate the QR factorization with the modified Gram-Schmidt process

SYNOPSIS

#include "lis.h"

LIS_INT lis_array_mgs(LIS_INT n, LIS_SCALAR a[], LIS_SCALAR q[], LIS_SCALAR r[]);

DESCRIPTION

Calculate the QR factorization QR=A with the modified Gram-Schmidt process.

INPUT

n

The size of the matrices

a

The array that stores matrix A of size n * n

OUTPUT

q

The array that stores matrix Q of size n * n

r

The array that stores matrix R of size n * n

EXIT STATUS

The following exit values are returned:

0

The process is normally terminated

unspecified

An error occurred

SEE ALSO

lis(3)

http://www.ssisc.org/lis/