# claset(3) [centos man page]

```claset.f(3)							      LAPACK							       claset.f(3)

NAME
claset.f -

SYNOPSIS
Functions/Subroutines
subroutine claset (UPLO, M, N, ALPHA, BETA, A, LDA)
CLASET initializes the off-diagonal 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 off-diagonal elements and the diagonal elements of a matrix to given values.

Purpose:

CLASET 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
All the offdiagonal array elements are set to ALPHA.

BETA

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

A

A 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)

LDA

LDA is INTEGER
The leading dimension of the array A.  LDA >= max(1,M).

Author:
Univ. of Tennessee

Univ. of California Berkeley

NAG Ltd.

Date:
September 2012

Definition at line 107 of file claset.f.

Author
Generated automatically by Doxygen for LAPACK from the source code.

Version 3.4.2							  Tue Sep 25 2012						       claset.f(3)```

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```slaset.f(3)							      LAPACK							       slaset.f(3)

NAME
slaset.f -

SYNOPSIS
Functions/Subroutines
subroutine slaset (UPLO, M, N, ALPHA, BETA, A, LDA)
SLASET initializes the off-diagonal elements and the diagonal elements of a matrix to given values.

Function/Subroutine Documentation
subroutine slaset (characterUPLO, integerM, integerN, realALPHA, realBETA, real, dimension( lda, * )A, integerLDA)
SLASET initializes the off-diagonal elements and the diagonal elements of a matrix to given values.

Purpose:

SLASET initializes an m-by-n matrix 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 strictly lower
triangular part of A is not changed.
= 'L':	 Lower triangular part is set; the strictly upper
triangular part of A is not changed.
Otherwise:  All of the matrix A is set.

M

M is INTEGER
The number of rows of the matrix A.  M >= 0.

N

N is INTEGER
The number of columns of the matrix A.  N >= 0.

ALPHA

ALPHA is REAL
The constant to which the offdiagonal elements are to be set.

BETA

BETA is REAL
The constant to which the diagonal elements are to be set.

A

A is REAL array, dimension (LDA,N)
On exit, the leading m-by-n submatrix of A is set as follows:

if UPLO = 'U', A(i,j) = ALPHA, 1<=i<=j-1, 1<=j<=n,
if UPLO = 'L', A(i,j) = ALPHA, j+1<=i<=m, 1<=j<=n,
otherwise,     A(i,j) = ALPHA, 1<=i<=m, 1<=j<=n, i.ne.j,

and, for all UPLO, 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