1DLASET(1)           LAPACK auxiliary routine (version 3.2)           DLASET(1)
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NAME

6       DLASET  -  initializes  an  m-by-n matrix A to BETA on the diagonal and
7       ALPHA on the offdiagonals
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SYNOPSIS

10       SUBROUTINE DLASET( UPLO, M, N, ALPHA, BETA, A, LDA )
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12           CHARACTER      UPLO
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14           INTEGER        LDA, M, N
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16           DOUBLE         PRECISION ALPHA, BETA
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18           DOUBLE         PRECISION A( LDA, * )
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PURPOSE

21       DLASET initializes an m-by-n matrix A to BETA on the diagonal and ALPHA
22       on the offdiagonals.
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ARGUMENTS

25       UPLO    (input) CHARACTER*1
26               Specifies  the  part  of  the  matrix  A  to  be  set.   = 'U':
27               Upper triangular part is set;  the  strictly  lower  triangular
28               part of A is not changed.  = 'L':      Lower triangular part is
29               set; the strictly upper triangular part of A  is  not  changed.
30               Otherwise:  All of the matrix A is set.
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32       M       (input) INTEGER
33               The number of rows of the matrix A.  M >= 0.
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35       N       (input) INTEGER
36               The number of columns of the matrix A.  N >= 0.
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38       ALPHA   (input) DOUBLE PRECISION
39               The constant to which the offdiagonal elements are to be set.
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41       BETA    (input) DOUBLE PRECISION
42               The constant to which the diagonal elements are to be set.
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44       A       (input/output) DOUBLE PRECISION array, dimension (LDA,N)
45               On  exit,  the leading m-by-n submatrix of A is set as follows:
46               if UPLO = 'U', A(i,j) = ALPHA, 1<=i<=j-1, 1<=j<=n,  if  UPLO  =
47               'L',  A(i,j) = ALPHA, j+1<=i<=m, 1<=j<=n, otherwise,     A(i,j)
48               = ALPHA, 1<=i<=m, 1<=j<=n, i.ne.j, and, for all UPLO, A(i,i)  =
49               BETA, 1<=i<=min(m,n).
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51       LDA     (input) INTEGER
52               The leading dimension of the array A.  LDA >= max(1,M).
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56 LAPACK auxiliary routine (versionNo3v.e2m)ber 2008                       DLASET(1)
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