!>
!> Using the divide and conquer method, ZLAED0 computes all eigenvalues
!> of a symmetric tridiagonal matrix which is one diagonal block of
!> those from reducing a dense or band Hermitian matrix and
!> corresponding eigenvectors of the dense or band matrix.
!> 

QSIZ

!>          QSIZ is INTEGER
!>         The dimension of the unitary matrix used to reduce
!>         the full matrix to tridiagonal form.  QSIZ >= N if ICOMPQ = 1.
!> 

N

!>          N is INTEGER
!>         The dimension of the symmetric tridiagonal matrix.  N >= 0.
!> 

D

!>          D is DOUBLE PRECISION array, dimension (N)
!>         On entry, the diagonal elements of the tridiagonal matrix.
!>         On exit, the eigenvalues in ascending order.
!> 

E

!>          E is DOUBLE PRECISION array, dimension (N-1)
!>         On entry, the off-diagonal elements of the tridiagonal matrix.
!>         On exit, E has been destroyed.
!> 

Q

!>          Q is COMPLEX*16 array, dimension (LDQ,N)
!>         On entry, Q must contain an QSIZ x N matrix whose columns
!>         unitarily orthonormal. It is a part of the unitary matrix
!>         that reduces the full dense Hermitian matrix to a
!>         (reducible) symmetric tridiagonal matrix.
!> 

LDQ

!>          LDQ is INTEGER
!>         The leading dimension of the array Q.  LDQ >= max(1,N).
!> 

IWORK

!>          IWORK is INTEGER array,
!>         the dimension of IWORK must be at least
!>                      6 + 6*N + 5*N*lg N
!>                      ( lg( N ) = smallest integer k
!>                                  such that 2^k >= N )
!> 

RWORK

!>          RWORK is DOUBLE PRECISION array,
!>                               dimension (1 + 3*N + 2*N*lg N + 3*N**2)
!>                        ( lg( N ) = smallest integer k
!>                                    such that 2^k >= N )
!> 

QSTORE

!>          QSTORE is COMPLEX*16 array, dimension (LDQS, N)
!>         Used to store parts of
!>         the eigenvector matrix when the updating matrix multiplies
!>         take place.
!> 

LDQS

!>          LDQS is INTEGER
!>         The leading dimension of the array QSTORE.
!>         LDQS >= max(1,N).
!> 

INFO

!>          INFO is INTEGER
!>          = 0:  successful exit.
!>          < 0:  if INFO = -i, the i-th argument had an illegal value.
!>          > 0:  The algorithm failed to compute an eigenvalue while
!>                working on the submatrix lying in rows and columns
!>                INFO/(N+1) through mod(INFO,N+1).
!> 

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