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LAPACK version 3.0
zlaset(3)

PURPOSE
  ZLASET - initialize a 2-D array A to BETA on the diagonal and ALPHA on the
  offdiagonals

SYNTAX
  SUBROUTINE ZLASET( UPLO, M, N, ALPHA, BETA, A, LDA )

      CHARACTER	     UPLO

      INTEGER	     LDA, M, N

      COMPLEX*16     ALPHA, BETA

      COMPLEX*16     A( LDA, * )

DESCRIPTION
  ZLASET 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.
	  Otherwise:  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*16
	  All the offdiagonal array elements are set to ALPHA.

  BETA	  (input) COMPLEX*16
	  All the diagonal array elements are set to BETA.

  A	  (input/output) COMPLEX*16 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).