lis_array_matvect.3f man page

lis_array_matvect — calculate the matrix vector product

Synopsis

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

Description

Calculate the matrix-vector product A^Tx.

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 = A^Tx
LIS_SUB_VALUE
y = y - A^Tx

Output

y
y

See Also

lis(3)

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

Info

3 Dec 2014 Man Page Lis Library Functions