DLARSCL2(1)LAPACK routine (version 3.2) DLARSCL2(1)NAME
DLARSCL2 - performs a reciprocal diagonal scaling on an vector
SUBROUTINE DLARSCL2 ( M, N, D, X, LDX )
INTEGER M, N, LDX
DOUBLE PRECISION D( * ), X( LDX, * )
DLARSCL2 performs a reciprocal diagonal scaling on an vector:
x <-- inv(D) * x
where the diagonal matrix D is stored as a vector.
Eventually to be replaced by BLAS_sge_diag_scale in the new BLAS stan‐
N (input) INTEGER
The size of the vectors X and D.
D (input) DOUBLE PRECISION array, length N
Diagonal matrix D, stored as a vector of length N.
X (input/output) DOUBLE PRECISION array, length N
On entry, the vector X to be scaled by D. On exit, the scaled
LAPACK routine (version 3.2) November 2008 DLARSCL2(1)