lis_array_matvect.3f - Man Page

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

Calculate the matrix-vector product A^Tx.

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 = A^Tx

LIS_SUB_VALUE

y = y - A^Tx

y

y

lis(3)

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