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/home/abuild/rpmbuild/BUILD/lapack-3.12.0/SRC/dlarscl2.f(3) Library Functions Manual /home/abuild/rpmbuild/BUILD/lapack-3.12.0/SRC/dlarscl2.f(3)

NAME

/home/abuild/rpmbuild/BUILD/lapack-3.12.0/SRC/dlarscl2.f

SYNOPSIS

Functions/Subroutines


subroutine DLARSCL2 (m, n, d, x, ldx)
DLARSCL2 performs reciprocal diagonal scaling on a matrix.

Function/Subroutine Documentation

subroutine DLARSCL2 (integer m, integer n, double precision, dimension( * ) d, double precision, dimension( ldx, * ) x, integer ldx)

DLARSCL2 performs reciprocal diagonal scaling on a matrix.

Purpose:

!>
!> DLARSCL2 performs a reciprocal diagonal scaling on a matrix:
!>   x <-- inv(D) * x
!> where the diagonal matrix D is stored as a vector.
!>
!> Eventually to be replaced by BLAS_dge_diag_scale in the new BLAS
!> standard.
!>

Parameters

M 

!>          M is INTEGER
!>     The number of rows of D and X. M >= 0.
!>

N

!>          N is INTEGER
!>     The number of columns of X. N >= 0.
!>

D

!>          D is DOUBLE PRECISION array, dimension (M)
!>     Diagonal matrix D, stored as a vector of length M.
!>

X

!>          X is DOUBLE PRECISION array, dimension (LDX,N)
!>     On entry, the matrix X to be scaled by D.
!>     On exit, the scaled matrix.
!>

LDX

!>          LDX is INTEGER
!>     The leading dimension of the matrix X. LDX >= M.
!>

Author

Univ. of Tennessee

Univ. of California Berkeley

Univ. of Colorado Denver

NAG Ltd.

Definition at line 89 of file dlarscl2.f.

Author

Generated automatically by Doxygen for LAPACK from the source code.

Version 3.12.0 LAPACK