603 lines
		
	
	
		
			19 KiB
		
	
	
	
		
			Fortran
		
	
	
	
			
		
		
	
	
			603 lines
		
	
	
		
			19 KiB
		
	
	
	
		
			Fortran
		
	
	
	
*> \brief \b DGET37
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*
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*  =========== DOCUMENTATION ===========
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*
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* Online html documentation available at 
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*            http://www.netlib.org/lapack/explore-html/ 
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*
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*  Definition:
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*  ===========
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*
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*       SUBROUTINE DGET37( RMAX, LMAX, NINFO, KNT, NIN )
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* 
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*       .. Scalar Arguments ..
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*       INTEGER            KNT, NIN
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*       ..
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*       .. Array Arguments ..
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*       INTEGER            LMAX( 3 ), NINFO( 3 )
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*       DOUBLE PRECISION   RMAX( 3 )
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*       ..
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*  
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*
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*> \par Purpose:
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*  =============
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*>
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*> \verbatim
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*>
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*> DGET37 tests DTRSNA, a routine for estimating condition numbers of
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*> eigenvalues and/or right eigenvectors of a matrix.
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*>
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*> The test matrices are read from a file with logical unit number NIN.
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*> \endverbatim
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*
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*  Arguments:
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*  ==========
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*
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*> \param[out] RMAX
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*> \verbatim
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*>          RMAX is DOUBLE PRECISION array, dimension (3)
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*>          Value of the largest test ratio.
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*>          RMAX(1) = largest ratio comparing different calls to DTRSNA
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*>          RMAX(2) = largest error in reciprocal condition
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*>                    numbers taking their conditioning into account
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*>          RMAX(3) = largest error in reciprocal condition
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*>                    numbers not taking their conditioning into
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*>                    account (may be larger than RMAX(2))
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*> \endverbatim
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*>
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*> \param[out] LMAX
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*> \verbatim
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*>          LMAX is INTEGER array, dimension (3)
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*>          LMAX(i) is example number where largest test ratio
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*>          RMAX(i) is achieved. Also:
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*>          If DGEHRD returns INFO nonzero on example i, LMAX(1)=i
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*>          If DHSEQR returns INFO nonzero on example i, LMAX(2)=i
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*>          If DTRSNA returns INFO nonzero on example i, LMAX(3)=i
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*> \endverbatim
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*>
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*> \param[out] NINFO
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*> \verbatim
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*>          NINFO is INTEGER array, dimension (3)
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*>          NINFO(1) = No. of times DGEHRD returned INFO nonzero
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*>          NINFO(2) = No. of times DHSEQR returned INFO nonzero
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*>          NINFO(3) = No. of times DTRSNA returned INFO nonzero
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*> \endverbatim
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*>
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*> \param[out] KNT
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*> \verbatim
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*>          KNT is INTEGER
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*>          Total number of examples tested.
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*> \endverbatim
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*>
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*> \param[in] NIN
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*> \verbatim
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*>          NIN is INTEGER
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*>          Input logical unit number
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*> \endverbatim
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*
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*  Authors:
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*  ========
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*
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*> \author Univ. of Tennessee 
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*> \author Univ. of California Berkeley 
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*> \author Univ. of Colorado Denver 
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*> \author NAG Ltd. 
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*
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*> \date November 2011
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*
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*> \ingroup double_eig
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*
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*  =====================================================================
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      SUBROUTINE DGET37( RMAX, LMAX, NINFO, KNT, NIN )
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*
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*  -- LAPACK test routine (version 3.4.0) --
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*  -- LAPACK is a software package provided by Univ. of Tennessee,    --
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*  -- Univ. of California Berkeley, Univ. of Colorado Denver and NAG Ltd..--
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*     November 2011
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*
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*     .. Scalar Arguments ..
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      INTEGER            KNT, NIN
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*     ..
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*     .. Array Arguments ..
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      INTEGER            LMAX( 3 ), NINFO( 3 )
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      DOUBLE PRECISION   RMAX( 3 )
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*     ..
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*
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*  =====================================================================
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*
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*     .. Parameters ..
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      DOUBLE PRECISION   ZERO, ONE, TWO
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      PARAMETER          ( ZERO = 0.0D0, ONE = 1.0D0, TWO = 2.0D0 )
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      DOUBLE PRECISION   EPSIN
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      PARAMETER          ( EPSIN = 5.9605D-8 )
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      INTEGER            LDT, LWORK
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      PARAMETER          ( LDT = 20, LWORK = 2*LDT*( 10+LDT ) )
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*     ..
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*     .. Local Scalars ..
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      INTEGER            I, ICMP, IFND, INFO, ISCL, J, KMIN, M, N
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      DOUBLE PRECISION   BIGNUM, EPS, SMLNUM, TNRM, TOL, TOLIN, V,
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     $                   VIMIN, VMAX, VMUL, VRMIN
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*     ..
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*     .. Local Arrays ..
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      LOGICAL            SELECT( LDT )
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      INTEGER            IWORK( 2*LDT ), LCMP( 3 )
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      DOUBLE PRECISION   DUM( 1 ), LE( LDT, LDT ), RE( LDT, LDT ),
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     $                   S( LDT ), SEP( LDT ), SEPIN( LDT ),
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     $                   SEPTMP( LDT ), SIN( LDT ), STMP( LDT ),
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     $                   T( LDT, LDT ), TMP( LDT, LDT ), VAL( 3 ),
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     $                   WI( LDT ), WIIN( LDT ), WITMP( LDT ),
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     $                   WORK( LWORK ), WR( LDT ), WRIN( LDT ),
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     $                   WRTMP( LDT )
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*     ..
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*     .. External Functions ..
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      DOUBLE PRECISION   DLAMCH, DLANGE
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      EXTERNAL           DLAMCH, DLANGE
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*     ..
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*     .. External Subroutines ..
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      EXTERNAL           DCOPY, DGEHRD, DHSEQR, DLABAD, DLACPY, DSCAL,
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     $                   DTREVC, DTRSNA
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*     ..
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*     .. Intrinsic Functions ..
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      INTRINSIC          DBLE, MAX, SQRT
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*     ..
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*     .. Executable Statements ..
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*
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      EPS = DLAMCH( 'P' )
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      SMLNUM = DLAMCH( 'S' ) / EPS
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      BIGNUM = ONE / SMLNUM
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      CALL DLABAD( SMLNUM, BIGNUM )
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*
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*     EPSIN = 2**(-24) = precision to which input data computed
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*
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      EPS = MAX( EPS, EPSIN )
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      RMAX( 1 ) = ZERO
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      RMAX( 2 ) = ZERO
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      RMAX( 3 ) = ZERO
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      LMAX( 1 ) = 0
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      LMAX( 2 ) = 0
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      LMAX( 3 ) = 0
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      KNT = 0
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      NINFO( 1 ) = 0
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      NINFO( 2 ) = 0
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      NINFO( 3 ) = 0
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*
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      VAL( 1 ) = SQRT( SMLNUM )
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      VAL( 2 ) = ONE
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      VAL( 3 ) = SQRT( BIGNUM )
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*
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*     Read input data until N=0.  Assume input eigenvalues are sorted
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*     lexicographically (increasing by real part, then decreasing by
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*     imaginary part)
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*
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   10 CONTINUE
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      READ( NIN, FMT = * )N
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      IF( N.EQ.0 )
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     $   RETURN
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      DO 20 I = 1, N
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         READ( NIN, FMT = * )( TMP( I, J ), J = 1, N )
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   20 CONTINUE
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      DO 30 I = 1, N
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         READ( NIN, FMT = * )WRIN( I ), WIIN( I ), SIN( I ), SEPIN( I )
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   30 CONTINUE
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      TNRM = DLANGE( 'M', N, N, TMP, LDT, WORK )
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*
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*     Begin test
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*
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      DO 240 ISCL = 1, 3
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*
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*        Scale input matrix
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*
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         KNT = KNT + 1
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         CALL DLACPY( 'F', N, N, TMP, LDT, T, LDT )
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         VMUL = VAL( ISCL )
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         DO 40 I = 1, N
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            CALL DSCAL( N, VMUL, T( 1, I ), 1 )
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   40    CONTINUE
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         IF( TNRM.EQ.ZERO )
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     $      VMUL = ONE
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*
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*        Compute eigenvalues and eigenvectors
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*
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         CALL DGEHRD( N, 1, N, T, LDT, WORK( 1 ), WORK( N+1 ), LWORK-N,
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     $                INFO )
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         IF( INFO.NE.0 ) THEN
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            LMAX( 1 ) = KNT
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            NINFO( 1 ) = NINFO( 1 ) + 1
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            GO TO 240
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         END IF
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         DO 60 J = 1, N - 2
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            DO 50 I = J + 2, N
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               T( I, J ) = ZERO
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   50       CONTINUE
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   60    CONTINUE
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*
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*        Compute Schur form
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*
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         CALL DHSEQR( 'S', 'N', N, 1, N, T, LDT, WR, WI, DUM, 1, WORK,
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     $                LWORK, INFO )
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         IF( INFO.NE.0 ) THEN
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            LMAX( 2 ) = KNT
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            NINFO( 2 ) = NINFO( 2 ) + 1
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            GO TO 240
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         END IF
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*
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*        Compute eigenvectors
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*
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         CALL DTREVC( 'Both', 'All', SELECT, N, T, LDT, LE, LDT, RE,
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     $                LDT, N, M, WORK, INFO )
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*
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*        Compute condition numbers
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*
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         CALL DTRSNA( 'Both', 'All', SELECT, N, T, LDT, LE, LDT, RE,
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     $                LDT, S, SEP, N, M, WORK, N, IWORK, INFO )
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         IF( INFO.NE.0 ) THEN
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            LMAX( 3 ) = KNT
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            NINFO( 3 ) = NINFO( 3 ) + 1
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            GO TO 240
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         END IF
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*
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*        Sort eigenvalues and condition numbers lexicographically
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*        to compare with inputs
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*
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         CALL DCOPY( N, WR, 1, WRTMP, 1 )
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         CALL DCOPY( N, WI, 1, WITMP, 1 )
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         CALL DCOPY( N, S, 1, STMP, 1 )
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         CALL DCOPY( N, SEP, 1, SEPTMP, 1 )
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         CALL DSCAL( N, ONE / VMUL, SEPTMP, 1 )
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         DO 80 I = 1, N - 1
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            KMIN = I
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            VRMIN = WRTMP( I )
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            VIMIN = WITMP( I )
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            DO 70 J = I + 1, N
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               IF( WRTMP( J ).LT.VRMIN ) THEN
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                  KMIN = J
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                  VRMIN = WRTMP( J )
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                  VIMIN = WITMP( J )
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               END IF
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   70       CONTINUE
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            WRTMP( KMIN ) = WRTMP( I )
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            WITMP( KMIN ) = WITMP( I )
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            WRTMP( I ) = VRMIN
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            WITMP( I ) = VIMIN
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            VRMIN = STMP( KMIN )
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            STMP( KMIN ) = STMP( I )
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            STMP( I ) = VRMIN
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            VRMIN = SEPTMP( KMIN )
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            SEPTMP( KMIN ) = SEPTMP( I )
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            SEPTMP( I ) = VRMIN
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   80    CONTINUE
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*
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*        Compare condition numbers for eigenvalues
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*        taking their condition numbers into account
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*
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         V = MAX( TWO*DBLE( N )*EPS*TNRM, SMLNUM )
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         IF( TNRM.EQ.ZERO )
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     $      V = ONE
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         DO 90 I = 1, N
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            IF( V.GT.SEPTMP( I ) ) THEN
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               TOL = ONE
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            ELSE
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               TOL = V / SEPTMP( I )
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            END IF
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            IF( V.GT.SEPIN( I ) ) THEN
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               TOLIN = ONE
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            ELSE
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               TOLIN = V / SEPIN( I )
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            END IF
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            TOL = MAX( TOL, SMLNUM / EPS )
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            TOLIN = MAX( TOLIN, SMLNUM / EPS )
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            IF( EPS*( SIN( I )-TOLIN ).GT.STMP( I )+TOL ) THEN
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               VMAX = ONE / EPS
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            ELSE IF( SIN( I )-TOLIN.GT.STMP( I )+TOL ) THEN
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               VMAX = ( SIN( I )-TOLIN ) / ( STMP( I )+TOL )
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            ELSE IF( SIN( I )+TOLIN.LT.EPS*( STMP( I )-TOL ) ) THEN
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               VMAX = ONE / EPS
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            ELSE IF( SIN( I )+TOLIN.LT.STMP( I )-TOL ) THEN
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               VMAX = ( STMP( I )-TOL ) / ( SIN( I )+TOLIN )
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            ELSE
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               VMAX = ONE
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            END IF
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            IF( VMAX.GT.RMAX( 2 ) ) THEN
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               RMAX( 2 ) = VMAX
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               IF( NINFO( 2 ).EQ.0 )
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     $            LMAX( 2 ) = KNT
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            END IF
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   90    CONTINUE
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*
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*        Compare condition numbers for eigenvectors
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*        taking their condition numbers into account
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*
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         DO 100 I = 1, N
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            IF( V.GT.SEPTMP( I )*STMP( I ) ) THEN
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               TOL = SEPTMP( I )
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            ELSE
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               TOL = V / STMP( I )
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            END IF
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            IF( V.GT.SEPIN( I )*SIN( I ) ) THEN
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               TOLIN = SEPIN( I )
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            ELSE
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               TOLIN = V / SIN( I )
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            END IF
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            TOL = MAX( TOL, SMLNUM / EPS )
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            TOLIN = MAX( TOLIN, SMLNUM / EPS )
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            IF( EPS*( SEPIN( I )-TOLIN ).GT.SEPTMP( I )+TOL ) THEN
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               VMAX = ONE / EPS
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            ELSE IF( SEPIN( I )-TOLIN.GT.SEPTMP( I )+TOL ) THEN
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               VMAX = ( SEPIN( I )-TOLIN ) / ( SEPTMP( I )+TOL )
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            ELSE IF( SEPIN( I )+TOLIN.LT.EPS*( SEPTMP( I )-TOL ) ) THEN
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               VMAX = ONE / EPS
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            ELSE IF( SEPIN( I )+TOLIN.LT.SEPTMP( I )-TOL ) THEN
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               VMAX = ( SEPTMP( I )-TOL ) / ( SEPIN( I )+TOLIN )
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            ELSE
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               VMAX = ONE
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            END IF
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            IF( VMAX.GT.RMAX( 2 ) ) THEN
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               RMAX( 2 ) = VMAX
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               IF( NINFO( 2 ).EQ.0 )
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     $            LMAX( 2 ) = KNT
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            END IF
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  100    CONTINUE
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*
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*        Compare condition numbers for eigenvalues
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*        without taking their condition numbers into account
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*
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         DO 110 I = 1, N
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            IF( SIN( I ).LE.DBLE( 2*N )*EPS .AND. STMP( I ).LE.
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     $          DBLE( 2*N )*EPS ) THEN
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               VMAX = ONE
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            ELSE IF( EPS*SIN( I ).GT.STMP( I ) ) THEN
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               VMAX = ONE / EPS
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            ELSE IF( SIN( I ).GT.STMP( I ) ) THEN
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               VMAX = SIN( I ) / STMP( I )
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            ELSE IF( SIN( I ).LT.EPS*STMP( I ) ) THEN
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               VMAX = ONE / EPS
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            ELSE IF( SIN( I ).LT.STMP( I ) ) THEN
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               VMAX = STMP( I ) / SIN( I )
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            ELSE
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               VMAX = ONE
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            END IF
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            IF( VMAX.GT.RMAX( 3 ) ) THEN
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               RMAX( 3 ) = VMAX
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               IF( NINFO( 3 ).EQ.0 )
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     $            LMAX( 3 ) = KNT
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            END IF
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  110    CONTINUE
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*
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*        Compare condition numbers for eigenvectors
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*        without taking their condition numbers into account
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*
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         DO 120 I = 1, N
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            IF( SEPIN( I ).LE.V .AND. SEPTMP( I ).LE.V ) THEN
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               VMAX = ONE
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            ELSE IF( EPS*SEPIN( I ).GT.SEPTMP( I ) ) THEN
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               VMAX = ONE / EPS
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            ELSE IF( SEPIN( I ).GT.SEPTMP( I ) ) THEN
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               VMAX = SEPIN( I ) / SEPTMP( I )
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            ELSE IF( SEPIN( I ).LT.EPS*SEPTMP( I ) ) THEN
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               VMAX = ONE / EPS
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            ELSE IF( SEPIN( I ).LT.SEPTMP( I ) ) THEN
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               VMAX = SEPTMP( I ) / SEPIN( I )
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            ELSE
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               VMAX = ONE
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            END IF
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            IF( VMAX.GT.RMAX( 3 ) ) THEN
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               RMAX( 3 ) = VMAX
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               IF( NINFO( 3 ).EQ.0 )
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     $            LMAX( 3 ) = KNT
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            END IF
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  120    CONTINUE
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*
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*        Compute eigenvalue condition numbers only and compare
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*
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         VMAX = ZERO
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         DUM( 1 ) = -ONE
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         CALL DCOPY( N, DUM, 0, STMP, 1 )
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         CALL DCOPY( N, DUM, 0, SEPTMP, 1 )
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         CALL DTRSNA( 'Eigcond', 'All', SELECT, N, T, LDT, LE, LDT, RE,
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     $                LDT, STMP, SEPTMP, N, M, WORK, N, IWORK, INFO )
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         IF( INFO.NE.0 ) THEN
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            LMAX( 3 ) = KNT
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            NINFO( 3 ) = NINFO( 3 ) + 1
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            GO TO 240
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         END IF
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         DO 130 I = 1, N
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            IF( STMP( I ).NE.S( I ) )
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     $         VMAX = ONE / EPS
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            IF( SEPTMP( I ).NE.DUM( 1 ) )
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     $         VMAX = ONE / EPS
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  130    CONTINUE
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*
 | 
						|
*        Compute eigenvector condition numbers only and compare
 | 
						|
*
 | 
						|
         CALL DCOPY( N, DUM, 0, STMP, 1 )
 | 
						|
         CALL DCOPY( N, DUM, 0, SEPTMP, 1 )
 | 
						|
         CALL DTRSNA( 'Veccond', 'All', SELECT, N, T, LDT, LE, LDT, RE,
 | 
						|
     $                LDT, STMP, SEPTMP, N, M, WORK, N, IWORK, INFO )
 | 
						|
         IF( INFO.NE.0 ) THEN
 | 
						|
            LMAX( 3 ) = KNT
 | 
						|
            NINFO( 3 ) = NINFO( 3 ) + 1
 | 
						|
            GO TO 240
 | 
						|
         END IF
 | 
						|
         DO 140 I = 1, N
 | 
						|
            IF( STMP( I ).NE.DUM( 1 ) )
 | 
						|
     $         VMAX = ONE / EPS
 | 
						|
            IF( SEPTMP( I ).NE.SEP( I ) )
 | 
						|
     $         VMAX = ONE / EPS
 | 
						|
  140    CONTINUE
 | 
						|
*
 | 
						|
*        Compute all condition numbers using SELECT and compare
 | 
						|
*
 | 
						|
         DO 150 I = 1, N
 | 
						|
            SELECT( I ) = .TRUE.
 | 
						|
  150    CONTINUE
 | 
						|
         CALL DCOPY( N, DUM, 0, STMP, 1 )
 | 
						|
         CALL DCOPY( N, DUM, 0, SEPTMP, 1 )
 | 
						|
         CALL DTRSNA( 'Bothcond', 'Some', SELECT, N, T, LDT, LE, LDT,
 | 
						|
     $                RE, LDT, STMP, SEPTMP, N, M, WORK, N, IWORK,
 | 
						|
     $                INFO )
 | 
						|
         IF( INFO.NE.0 ) THEN
 | 
						|
            LMAX( 3 ) = KNT
 | 
						|
            NINFO( 3 ) = NINFO( 3 ) + 1
 | 
						|
            GO TO 240
 | 
						|
         END IF
 | 
						|
         DO 160 I = 1, N
 | 
						|
            IF( SEPTMP( I ).NE.SEP( I ) )
 | 
						|
     $         VMAX = ONE / EPS
 | 
						|
            IF( STMP( I ).NE.S( I ) )
 | 
						|
     $         VMAX = ONE / EPS
 | 
						|
  160    CONTINUE
 | 
						|
*
 | 
						|
*        Compute eigenvalue condition numbers using SELECT and compare
 | 
						|
*
 | 
						|
         CALL DCOPY( N, DUM, 0, STMP, 1 )
 | 
						|
         CALL DCOPY( N, DUM, 0, SEPTMP, 1 )
 | 
						|
         CALL DTRSNA( 'Eigcond', 'Some', SELECT, N, T, LDT, LE, LDT, RE,
 | 
						|
     $                LDT, STMP, SEPTMP, N, M, WORK, N, IWORK, INFO )
 | 
						|
         IF( INFO.NE.0 ) THEN
 | 
						|
            LMAX( 3 ) = KNT
 | 
						|
            NINFO( 3 ) = NINFO( 3 ) + 1
 | 
						|
            GO TO 240
 | 
						|
         END IF
 | 
						|
         DO 170 I = 1, N
 | 
						|
            IF( STMP( I ).NE.S( I ) )
 | 
						|
     $         VMAX = ONE / EPS
 | 
						|
            IF( SEPTMP( I ).NE.DUM( 1 ) )
 | 
						|
     $         VMAX = ONE / EPS
 | 
						|
  170    CONTINUE
 | 
						|
*
 | 
						|
*        Compute eigenvector condition numbers using SELECT and compare
 | 
						|
*
 | 
						|
         CALL DCOPY( N, DUM, 0, STMP, 1 )
 | 
						|
         CALL DCOPY( N, DUM, 0, SEPTMP, 1 )
 | 
						|
         CALL DTRSNA( 'Veccond', 'Some', SELECT, N, T, LDT, LE, LDT, RE,
 | 
						|
     $                LDT, STMP, SEPTMP, N, M, WORK, N, IWORK, INFO )
 | 
						|
         IF( INFO.NE.0 ) THEN
 | 
						|
            LMAX( 3 ) = KNT
 | 
						|
            NINFO( 3 ) = NINFO( 3 ) + 1
 | 
						|
            GO TO 240
 | 
						|
         END IF
 | 
						|
         DO 180 I = 1, N
 | 
						|
            IF( STMP( I ).NE.DUM( 1 ) )
 | 
						|
     $         VMAX = ONE / EPS
 | 
						|
            IF( SEPTMP( I ).NE.SEP( I ) )
 | 
						|
     $         VMAX = ONE / EPS
 | 
						|
  180    CONTINUE
 | 
						|
         IF( VMAX.GT.RMAX( 1 ) ) THEN
 | 
						|
            RMAX( 1 ) = VMAX
 | 
						|
            IF( NINFO( 1 ).EQ.0 )
 | 
						|
     $         LMAX( 1 ) = KNT
 | 
						|
         END IF
 | 
						|
*
 | 
						|
*        Select first real and first complex eigenvalue
 | 
						|
*
 | 
						|
         IF( WI( 1 ).EQ.ZERO ) THEN
 | 
						|
            LCMP( 1 ) = 1
 | 
						|
            IFND = 0
 | 
						|
            DO 190 I = 2, N
 | 
						|
               IF( IFND.EQ.1 .OR. WI( I ).EQ.ZERO ) THEN
 | 
						|
                  SELECT( I ) = .FALSE.
 | 
						|
               ELSE
 | 
						|
                  IFND = 1
 | 
						|
                  LCMP( 2 ) = I
 | 
						|
                  LCMP( 3 ) = I + 1
 | 
						|
                  CALL DCOPY( N, RE( 1, I ), 1, RE( 1, 2 ), 1 )
 | 
						|
                  CALL DCOPY( N, RE( 1, I+1 ), 1, RE( 1, 3 ), 1 )
 | 
						|
                  CALL DCOPY( N, LE( 1, I ), 1, LE( 1, 2 ), 1 )
 | 
						|
                  CALL DCOPY( N, LE( 1, I+1 ), 1, LE( 1, 3 ), 1 )
 | 
						|
               END IF
 | 
						|
  190       CONTINUE
 | 
						|
            IF( IFND.EQ.0 ) THEN
 | 
						|
               ICMP = 1
 | 
						|
            ELSE
 | 
						|
               ICMP = 3
 | 
						|
            END IF
 | 
						|
         ELSE
 | 
						|
            LCMP( 1 ) = 1
 | 
						|
            LCMP( 2 ) = 2
 | 
						|
            IFND = 0
 | 
						|
            DO 200 I = 3, N
 | 
						|
               IF( IFND.EQ.1 .OR. WI( I ).NE.ZERO ) THEN
 | 
						|
                  SELECT( I ) = .FALSE.
 | 
						|
               ELSE
 | 
						|
                  LCMP( 3 ) = I
 | 
						|
                  IFND = 1
 | 
						|
                  CALL DCOPY( N, RE( 1, I ), 1, RE( 1, 3 ), 1 )
 | 
						|
                  CALL DCOPY( N, LE( 1, I ), 1, LE( 1, 3 ), 1 )
 | 
						|
               END IF
 | 
						|
  200       CONTINUE
 | 
						|
            IF( IFND.EQ.0 ) THEN
 | 
						|
               ICMP = 2
 | 
						|
            ELSE
 | 
						|
               ICMP = 3
 | 
						|
            END IF
 | 
						|
         END IF
 | 
						|
*
 | 
						|
*        Compute all selected condition numbers
 | 
						|
*
 | 
						|
         CALL DCOPY( ICMP, DUM, 0, STMP, 1 )
 | 
						|
         CALL DCOPY( ICMP, DUM, 0, SEPTMP, 1 )
 | 
						|
         CALL DTRSNA( 'Bothcond', 'Some', SELECT, N, T, LDT, LE, LDT,
 | 
						|
     $                RE, LDT, STMP, SEPTMP, N, M, WORK, N, IWORK,
 | 
						|
     $                INFO )
 | 
						|
         IF( INFO.NE.0 ) THEN
 | 
						|
            LMAX( 3 ) = KNT
 | 
						|
            NINFO( 3 ) = NINFO( 3 ) + 1
 | 
						|
            GO TO 240
 | 
						|
         END IF
 | 
						|
         DO 210 I = 1, ICMP
 | 
						|
            J = LCMP( I )
 | 
						|
            IF( SEPTMP( I ).NE.SEP( J ) )
 | 
						|
     $         VMAX = ONE / EPS
 | 
						|
            IF( STMP( I ).NE.S( J ) )
 | 
						|
     $         VMAX = ONE / EPS
 | 
						|
  210    CONTINUE
 | 
						|
*
 | 
						|
*        Compute selected eigenvalue condition numbers
 | 
						|
*
 | 
						|
         CALL DCOPY( ICMP, DUM, 0, STMP, 1 )
 | 
						|
         CALL DCOPY( ICMP, DUM, 0, SEPTMP, 1 )
 | 
						|
         CALL DTRSNA( 'Eigcond', 'Some', SELECT, N, T, LDT, LE, LDT, RE,
 | 
						|
     $                LDT, STMP, SEPTMP, N, M, WORK, N, IWORK, INFO )
 | 
						|
         IF( INFO.NE.0 ) THEN
 | 
						|
            LMAX( 3 ) = KNT
 | 
						|
            NINFO( 3 ) = NINFO( 3 ) + 1
 | 
						|
            GO TO 240
 | 
						|
         END IF
 | 
						|
         DO 220 I = 1, ICMP
 | 
						|
            J = LCMP( I )
 | 
						|
            IF( STMP( I ).NE.S( J ) )
 | 
						|
     $         VMAX = ONE / EPS
 | 
						|
            IF( SEPTMP( I ).NE.DUM( 1 ) )
 | 
						|
     $         VMAX = ONE / EPS
 | 
						|
  220    CONTINUE
 | 
						|
*
 | 
						|
*        Compute selected eigenvector condition numbers
 | 
						|
*
 | 
						|
         CALL DCOPY( ICMP, DUM, 0, STMP, 1 )
 | 
						|
         CALL DCOPY( ICMP, DUM, 0, SEPTMP, 1 )
 | 
						|
         CALL DTRSNA( 'Veccond', 'Some', SELECT, N, T, LDT, LE, LDT, RE,
 | 
						|
     $                LDT, STMP, SEPTMP, N, M, WORK, N, IWORK, INFO )
 | 
						|
         IF( INFO.NE.0 ) THEN
 | 
						|
            LMAX( 3 ) = KNT
 | 
						|
            NINFO( 3 ) = NINFO( 3 ) + 1
 | 
						|
            GO TO 240
 | 
						|
         END IF
 | 
						|
         DO 230 I = 1, ICMP
 | 
						|
            J = LCMP( I )
 | 
						|
            IF( STMP( I ).NE.DUM( 1 ) )
 | 
						|
     $         VMAX = ONE / EPS
 | 
						|
            IF( SEPTMP( I ).NE.SEP( J ) )
 | 
						|
     $         VMAX = ONE / EPS
 | 
						|
  230    CONTINUE
 | 
						|
         IF( VMAX.GT.RMAX( 1 ) ) THEN
 | 
						|
            RMAX( 1 ) = VMAX
 | 
						|
            IF( NINFO( 1 ).EQ.0 )
 | 
						|
     $         LMAX( 1 ) = KNT
 | 
						|
         END IF
 | 
						|
  240 CONTINUE
 | 
						|
      GO TO 10
 | 
						|
*
 | 
						|
*     End of DGET37
 | 
						|
*
 | 
						|
      END
 |