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

6       lis_matrix_scale - scale the matrix
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SYNOPSIS

10       #include "lis.h"
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12       LIS_INT  lis_matrix_scale(LIS_MATRIX  A,  LIS_VECTOR  b,  LIS_VECTOR d,
13       LIS_INT action);
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DESCRIPTION

17       Scale matrix A.
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INPUT

21       i      The row number of the matrix
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24       j      The column number of the matrix
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27       value  The scalar value to be assigned
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30       A      The matrix
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33       b      The vector
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36       action
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38              LIS_SCALE_JACOBI
39                     Jacobi scaling D^-1 A x = D^-1 b, where D represents  the
40                     diagonal of A=(a_ij)
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42              LIS_SCALE_SYMM_DIAG
43                     Diagonal  scaling  D^-1/2  A  D^-1/2  x = D^-1/2 b, where
44                     D^-1/2 represents the diagonal matrix with (a_ii)^-1/2 as
45                     the diagonal
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OUTPUT

49       d      The vector which stores the diagonal elements of D^-1 or D^-1/2
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EXIT STATUS

53       The following exit values are returned:
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55       0      The process is normally terminated
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57       unspecified
58              An error occurred
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SEE ALSO

62       lis(3)
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64       http://www.ssisc.org/lis/
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69Man Page                          28 Aug 2014              lis_matrix_scale(3)