ZGET01 reconstructs a matrix A from its L*U factorization and


 computes the residual


    norm(L*U - A) / ( N * norm(A) * EPS ),


 where EPS is the machine epsilon.

M

          M is INTEGER


          The number of rows of the matrix A.  M >= 0.

N

          N is INTEGER


          The number of columns of the matrix A.  N >= 0.

A

          A is COMPLEX*16 array, dimension (LDA,N)


          The original M x N matrix A.

LDA

          LDA is INTEGER


          The leading dimension of the array A.  LDA >= max(1,M).

AFAC

          AFAC is COMPLEX*16 array, dimension (LDAFAC,N)


          The factored form of the matrix A.  AFAC contains the factors


          L and U from the L*U factorization as computed by ZGETRF.


          Overwritten with the reconstructed matrix, and then with the


          difference L*U - A.

LDAFAC

          LDAFAC is INTEGER


          The leading dimension of the array AFAC.  LDAFAC >= max(1,M).

IPIV

          IPIV is INTEGER array, dimension (N)


          The pivot indices from ZGETRF.

RWORK

          RWORK is DOUBLE PRECISION array, dimension (M)

RESID

          RESID is DOUBLE PRECISION


          norm(L*U - A) / ( N * norm(A) * EPS )

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