lis_array_matvec(3f)

NAME
lis_array_matvec - calculate the matrix vector product

SYNOPSIS
subroutine lis_array_matvec(LIS_INTEGER n, LIS_SCALAR a(), LIS_SCALAR x(), LIS_SCALAR y(), LIS_INTEGER op, LIS_INTEGER ierr);

DESCRIPTION
Calculate the matrix-vector product Ax.

INPUT

n   The size of the matrix and vectors

a   The array that stores matrix A of size n * n

x   The array that stores vector x of size n

y   The array that stores vector y of size n

op

    LIS_INS_VALUE
        y = Ax

    LIS_SUB_VALUE
        y = y - Ax

OUTPUT

y   y

SEE ALSO
lis(3)

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