NAME

       clarscl2.f -

SYNOPSIS

   Functions/Subroutines
       subroutine clarscl2 (M, N, D, X, LDX)
           CLARSCL2 performs reciprocal diagonal scaling on a vector.

Function/Subroutine Documentation

   subroutine clarscl2 (integerM, integerN, real, dimension( * )D, complex, dimension( ldx, * )X,
       integerLDX)
       CLARSCL2 performs reciprocal diagonal scaling on a vector.

       Purpose:

            CLARSCL2 performs a reciprocal diagonal scaling on an vector:
              x <-- inv(D) * x
            where the REAL diagonal matrix D is stored as a vector.

            Eventually to be replaced by BLAS_cge_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 REAL array, length M
                Diagonal matrix D, stored as a vector of length M.

           X

                     X is COMPLEX 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 clarscl2.f.

Author

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