slaset(l) [redhat man page]

SLASET(l)								 )								 SLASET(l)

NAME

       SLASET - initialize an m-by-n matrix A to BETA on the diagonal and ALPHA on the offdiagonals

SYNOPSIS

       SUBROUTINE SLASET( UPLO, M, N, ALPHA, BETA, A, LDA )

	   CHARACTER	  UPLO

	   INTEGER	  LDA, M, N

	   REAL 	  ALPHA, BETA

	   REAL 	  A( LDA, * )

PURPOSE

       SLASET initializes an m-by-n matrix 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 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       (input) INTEGER
	       The number of rows of the matrix A.  M >= 0.

       N       (input) INTEGER
	       The number of columns of the matrix A.  N >= 0.

       ALPHA   (input) REAL
	       The constant to which the offdiagonal elements are to be set.

       BETA    (input) REAL
	       The constant to which the diagonal elements are to be set.

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

LAPACK version 3.0						   15 June 2000 							 SLASET(l)

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

	   Univ. of Colorado Denver

	   NAG Ltd.

       Date:
	   September 2012

       Definition at line 111 of file slaset.f.

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

Version 3.4.2							  Tue Sep 25 2012						       slaset.f(3)