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## man page of LAPACK-3

### LAPACK-3: initializes a 2-D array A to BETA on the diagonal and ALPHA on the offdiagonals

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## NAME

LAPACK-3 - 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 (versionMarch 2011 LAPACK-3(3)

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