NAME

       complex16_eig

SYNOPSIS

   Functions
       subroutine zlarfy (UPLO, N, V, INCV, TAU, C, LDC, WORK)
           ZLARFY

Detailed Description

       This is the group of complex16 LAPACK TESTING EIG routines.

Function Documentation

   subroutine zlarfy (character UPLO, integer N, complex*16, dimension( * ) V, integer INCV,
       complex*16 TAU, complex*16, dimension( ldc, * ) C, integer LDC, complex*16, dimension( * )
       WORK)
       ZLARFY

       Purpose:

            ZLARFY applies an elementary reflector, or Householder matrix, H,
            to an n x n Hermitian matrix C, from both the left and the right.

            H is represented in the form

               H = I - tau * v * v'

            where  tau  is a scalar and  v  is a vector.

            If  tau  is  zero, then  H  is taken to be the unit matrix.

       Parameters:
           UPLO

                     UPLO is CHARACTER*1
                     Specifies whether the upper or lower triangular part of the
                     Hermitian matrix C is stored.
                     = 'U':  Upper triangle
                     = 'L':  Lower triangle

           N

                     N is INTEGER
                     The number of rows and columns of the matrix C.  N >= 0.

           V

                     V is COMPLEX*16 array, dimension
                             (1 + (N-1)*abs(INCV))
                     The vector v as described above.

           INCV

                     INCV is INTEGER
                     The increment between successive elements of v.  INCV must
                     not be zero.

           TAU

                     TAU is COMPLEX*16
                     The value tau as described above.

           C

                     C is COMPLEX*16 array, dimension (LDC, N)
                     On entry, the matrix C.
                     On exit, C is overwritten by H * C * H'.

           LDC

                     LDC is INTEGER
                     The leading dimension of the array C.  LDC >= max( 1, N ).

           WORK

                     WORK is COMPLEX*16 array, dimension (N)

       Author:
           Univ. of Tennessee

           Univ. of California Berkeley

           Univ. of Colorado Denver

           NAG Ltd.

       Date:
           December 2016

Author

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