ZLASET
November 2006
Purpose
ZLASET initializes a 2-D array A to BETA on the diagonal and
ALPHA on the offdiagonals.
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).
|