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claset

 NAME
      CLASET - initialize a 2-D array A to BETA on the diagonal
      and ALPHA on the offdiagonals

 SYNOPSIS
      SUBROUTINE CLASET( UPLO, M, N, ALPHA, BETA, A, LDA )

          CHARACTER      UPLO

          INTEGER        LDA, M, N

          COMPLEX        ALPHA, BETA

          COMPLEX        A( LDA, * )

 PURPOSE
      CLASET initializes a 2-D array A to BETA on the diagonal and
      ALPHA on the offdiagonals.

 ARGUMENTS
      UPLO    (input) 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.  Oth-
              erwise:  All of the matrix A is set.

      M       (input) INTEGER
              On entry, M specifies the number of rows of A.

      N       (input) INTEGER
              On entry, N specifies the number of columns of A.

      ALPHA   (input) COMPLEX
              All the offdiagonal array elements are set to ALPHA.

      BETA    (input) COMPLEX
              All the diagonal array elements are set to BETA.

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