zlaset.f (3)  Linux Manuals
NAME
zlaset.f 
SYNOPSIS
Functions/Subroutines
subroutine zlaset (UPLO, M, N, ALPHA, BETA, A, LDA)
ZLASET initializes the offdiagonal elements and the diagonal elements of a matrix to given values.
Function/Subroutine Documentation
subroutine zlaset (characterUPLO, integerM, integerN, complex*16ALPHA, complex*16BETA, complex*16, dimension( lda, * )A, integerLDA)
ZLASET initializes the offdiagonal elements and the diagonal elements of a matrix to given values.
Purpose:

ZLASET initializes a 2D array A to BETA on the diagonal and ALPHA on the offdiagonals.
Parameters:

UPLO
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.
MM is INTEGER On entry, M specifies the number of rows of A.
NN is INTEGER On entry, N specifies the number of columns of A.
ALPHAALPHA is COMPLEX*16 All the offdiagonal array elements are set to ALPHA.
BETABETA is COMPLEX*16 All the diagonal array elements are set to BETA.
AA 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)
LDALDA is INTEGER The leading dimension of the array A. LDA >= max(1,M).
Author:

Univ. of Tennessee
Univ. of California Berkeley
Univ. of Colorado Denver
NAG Ltd.
Date:
 September 2012
Definition at line 107 of file zlaset.f.
Author
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