ZLASET(1) LAPACK auxiliary routine (version 3.2) ZLASET(1)NAME
ZLASET - initializes a 2-D array A to BETA on the diagonal and ALPHA on
the offdiagonals
SYNOPSIS
SUBROUTINE ZLASET( UPLO, M, N, ALPHA, BETA, A, LDA )
CHARACTER UPLO
INTEGER LDA, M, N
COMPLEX*16 ALPHA, BETA
COMPLEX*16 A( LDA, * )
PURPOSE
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).
LAPACK auxiliary routine (versioNovember 2008 ZLASET(1)
