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Man Pages
lis_array_matvec_ns(3f) Lis Library Functions lis_array_matvec_ns(3f)

lis_array_matvec_ns - calculate the matrix vector product

subroutine lis_array_matvec_ns(LIS_INTEGER m, LIS_INTEGER n, LIS_SCALAR a(), LIS_INTEGER lda, LIS_SCALAR x(), LIS_SCALAR y(), LIS_INTEGER op, LIS_INTEGER ierr);

Calculate the matrix-vector product Ax, where matrix $fIA is not square.

m, n
The size of the matrix and vectors

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

x
The array that stores vector x of size n

y
The array that stores vector y of size m

op
LIS_INS_VALUE
y = Ax
LIS_SUB_VALUE
y = y - Ax

y
y

lis(3)

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

3 Dec 2014 Man Page

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