zlarscl2.f man page

zlarscl2.f —

Synopsis

Functions/Subroutines

subroutine zlarscl2 (M, N, D, X, LDX)
ZLARSCL2 performs reciprocal diagonal scaling on a vector.

Function/Subroutine Documentation

subroutine zlarscl2 (integerM, integerN, double precision, dimension( * )D, complex*16, dimension( ldx, * )X, integerLDX)

ZLARSCL2 performs reciprocal diagonal scaling on a vector.

Purpose:

ZLARSCL2 performs a reciprocal diagonal scaling on an vector:
  x <-- inv(D) * x
where the DOUBLE PRECISION diagonal matrix D is stored as a vector.

Eventually to be replaced by BLAS_zge_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 D and X. N >= 0.

D

     D is DOUBLE PRECISION array, length M
Diagonal matrix D, stored as a vector of length M.

X

     X is COMPLEX*16 array, dimension (LDX,N)
On entry, the vector X to be scaled by D.
On exit, the scaled vector.

LDX

     LDX is INTEGER
The leading dimension of the vector X. LDX >= 0.

Author:

Univ. of Tennessee

Univ. of California Berkeley

Univ. of Colorado Denver

NAG Ltd.

Date:

September 2012

Definition at line 92 of file zlarscl2.f.

Author

Generated automatically by Doxygen for LAPACK from the source code.

Referenced By

zlarscl2(3) is an alias of zlarscl2.f(3).

Sat Nov 16 2013 Version 3.4.2 LAPACK