zlascl2 (l) - Linux Manuals
zlascl2: performs a diagonal scaling on a vector
NAMEZLASCL2 - performs a diagonal scaling on a vector
- SUBROUTINE ZLASCL2
- ( M, N, D, X, LDX )
- IMPLICIT NONE
- INTEGER M, N, LDX
- DOUBLE PRECISION D( * )
- COMPLEX*16 X( LDX, * )
PURPOSEZLASCL2 performs a diagonal scaling on a vector:
where the diagonal matrix D is stored as a vector.
Eventually to be replaced by BLAS_sge_diag_scale in the new BLAS standard.
ARGUMENTSThe 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.