NAME¶

ZLASCL2 - performs a diagonal scaling on a vector

SYNOPSIS¶

SUBROUTINE ZLASCL2

( M, N, D, X, LDX )

IMPLICIT NONE INTEGER M, N, LDX DOUBLE PRECISION D( * ) COMPLEX*16 X( LDX, * )

PURPOSE¶

ZLASCL2 performs a diagonal scaling on a vector:
x <-- 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 standard.

ARGUMENTS¶

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) COMPLEX*16 array, length N On entry, the vector X to be scaled by D. On exit, the scaled vector.