1lis_array_matvec(3)          Lis Library Functions         lis_array_matvec(3)
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NAME

6       lis_array_matvec - calculate the matrix vector product
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SYNOPSIS

10       #include "lis.h"
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12       LIS_INT  lis_array_matvec(LIS_INT  n,  LIS_SCALAR  a[], LIS_SCALAR x[],
13       LIS_SCALAR y[], LIS_INT op);
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DESCRIPTION

17       Calculate the matrix-vector product Ax.
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INPUT

21       n      The size of the matrix and vectors
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24       a      The array that stores matrix A of size n * n
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27       x      The array that stores vector x of size n
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30       y      The array that stores vector y of size n
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33       op
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35              LIS_INS_VALUE
36                     y = Ax
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38              LIS_SUB_VALUE
39                     y = y - Ax
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OUTPUT

43       y      y
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EXIT STATUS

47       The following exit values are returned:
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49       0      The process is normally terminated
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51       unspecified
52              An error occurred
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SEE ALSO

56       lis(3)
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58       http://www.ssisc.org/lis/
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63Man Page                          3 Dec 2014               lis_array_matvec(3)