zlaset.f man page

zlaset.f —

Synopsis

Functions/Subroutines

subroutine zlaset (UPLO, M, N, ALPHA, BETA, A, LDA)
ZLASET initializes the off-diagonal 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 off-diagonal elements and the diagonal elements of a matrix to given values.

Purpose:

ZLASET initializes a 2-D 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.

M

M is INTEGER
On entry, M specifies the number of rows of A.

N

N is INTEGER
On entry, N specifies the number of columns of A.

ALPHA

ALPHA is COMPLEX*16
All the offdiagonal array elements are set to ALPHA.

BETA

BETA is COMPLEX*16
All the diagonal array elements are set to BETA.

A

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

LDA 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

Generated automatically by Doxygen for LAPACK from the source code.

Referenced By

zlaset(3) is an alias of zlaset.f(3).

Sat Nov 16 2013 Version 3.4.2 LAPACK