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zlaset.f(3) | LAPACK | zlaset.f(3) |
NAME¶
zlaset.f -SYNOPSIS¶
Functions/Subroutines¶
subroutine zlaset (UPLO, M, N, ALPHA, BETA, A, LDA)
Function/Subroutine Documentation¶
subroutine zlaset (characterUPLO, integerM, integerN, complex*16ALPHA, complex*16BETA, complex*16, dimension( lda, * )A, integerLDA)¶
ZLASET Purpose:ZLASET initializes a 2-D array A to BETA on the diagonal and ALPHA on the offdiagonals.
UPLO
M
N
ALPHA
BETA
A
LDA
Author:
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 is INTEGER On entry, M specifies the number of rows of A.
N is INTEGER On entry, N specifies the number of columns of A.
ALPHA is COMPLEX*16 All the offdiagonal array elements are set to ALPHA.
BETA is COMPLEX*16 All the diagonal array elements are set to BETA.
A is 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 is INTEGER The leading dimension of the array A. LDA >= max(1,M).
Univ. of Tennessee
Univ. of California Berkeley
Univ. of Colorado Denver
NAG Ltd.
Date:
November 2011
Author¶
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