TESTING/LIN/sget01.f(3)    Library Functions Manual    TESTING/LIN/sget01.f(3)

NAME
       TESTING/LIN/sget01.f

SYNOPSIS
   Functions/Subroutines
       subroutine sget01 (m, n, a, lda, afac, ldafac, ipiv, rwork, resid)
           SGET01

Function/Subroutine Documentation
   subroutine sget01 (integer m, integer n, real, dimension( lda, * ) a,
       integer lda, real, dimension( ldafac, * ) afac, integer ldafac,
       integer, dimension( * ) ipiv, real, dimension( * ) rwork, real resid)
       SGET01

       Purpose:


            SGET01 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.

       Parameters
           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 REAL 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 REAL 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 SGETRF.
                     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 SGETRF.

           RWORK

                     RWORK is REAL array, dimension (M)

           RESID

                     RESID is REAL
                     norm(L*U - A) / ( N * norm(A) * EPS )

       Author
           Univ. of Tennessee

           Univ. of California Berkeley

           Univ. of Colorado Denver

           NAG Ltd.

       Definition at line 105 of file sget01.f.

Author
       Generated automatically by Doxygen for LAPACK from the source code.

LAPACK                          Version 3.12.0         TESTING/LIN/sget01.f(3)