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

CLASET 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 All the offdiagonal array elements are set to ALPHA.
BETABETA is COMPLEX All the diagonal array elements are set to BETA.
AA is COMPLEX 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 claset.f.
Author
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