CLASET initializes a 2-D array A to BETA on the diagonal and


 ALPHA on the offdiagonals.

UPLO

          UPLO is CHARACTER*1


          Specifies the part of the matrix A to be set.


          = 'U':      Upper triangular part is set. The lower triangle


                      is unchanged.


          = 'L':      Lower triangular part is set. The upper triangle


                      is unchanged.


          Otherwise:  All of the matrix A is set.

M

          M is INTEGER


          On entry, M specifies the number of rows of A.

N

          N is INTEGER


          On entry, N specifies the number of columns of A.

ALPHA

          ALPHA is COMPLEX


          All the offdiagonal array elements are set to ALPHA.

BETA

          BETA is COMPLEX


          All the diagonal array elements are set to BETA.

A

          A is COMPLEX array, dimension (LDA,N)


          On entry, the m by n matrix A.


          On exit, A(i,j) = ALPHA, 1 <= i <= m, 1 <= j <= n, i.ne.j;


                   A(i,i) = BETA , 1 <= i <= min(m,n)

LDA

          LDA is INTEGER


          The leading dimension of the array A.  LDA >= max(1,M).

Univ. of Tennessee

Univ. of California Berkeley

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NAG Ltd.

September 2012