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version 1.7, 2010/12/21 13:53:51 version 1.8, 2011/11/21 20:43:16
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   *> \brief \b ZLAQSY
   *
   *  =========== DOCUMENTATION ===========
   *
   * Online html documentation available at 
   *            http://www.netlib.org/lapack/explore-html/ 
   *
   *> \htmlonly
   *> Download ZLAQSY + dependencies 
   *> <a href="http://www.netlib.org/cgi-bin/netlibfiles.tgz?format=tgz&filename=/lapack/lapack_routine/zlaqsy.f"> 
   *> [TGZ]</a> 
   *> <a href="http://www.netlib.org/cgi-bin/netlibfiles.zip?format=zip&filename=/lapack/lapack_routine/zlaqsy.f"> 
   *> [ZIP]</a> 
   *> <a href="http://www.netlib.org/cgi-bin/netlibfiles.txt?format=txt&filename=/lapack/lapack_routine/zlaqsy.f"> 
   *> [TXT]</a>
   *> \endhtmlonly 
   *
   *  Definition:
   *  ===========
   *
   *       SUBROUTINE ZLAQSY( UPLO, N, A, LDA, S, SCOND, AMAX, EQUED )
   * 
   *       .. Scalar Arguments ..
   *       CHARACTER          EQUED, UPLO
   *       INTEGER            LDA, N
   *       DOUBLE PRECISION   AMAX, SCOND
   *       ..
   *       .. Array Arguments ..
   *       DOUBLE PRECISION   S( * )
   *       COMPLEX*16         A( LDA, * )
   *       ..
   *  
   *
   *> \par Purpose:
   *  =============
   *>
   *> \verbatim
   *>
   *> ZLAQSY equilibrates a symmetric matrix A using the scaling factors
   *> in the vector S.
   *> \endverbatim
   *
   *  Arguments:
   *  ==========
   *
   *> \param[in] UPLO
   *> \verbatim
   *>          UPLO is CHARACTER*1
   *>          Specifies whether the upper or lower triangular part of the
   *>          symmetric matrix A is stored.
   *>          = 'U':  Upper triangular
   *>          = 'L':  Lower triangular
   *> \endverbatim
   *>
   *> \param[in] N
   *> \verbatim
   *>          N is INTEGER
   *>          The order of the matrix A.  N >= 0.
   *> \endverbatim
   *>
   *> \param[in,out] A
   *> \verbatim
   *>          A is COMPLEX*16 array, dimension (LDA,N)
   *>          On entry, the symmetric matrix A.  If UPLO = 'U', the leading
   *>          n by n upper triangular part of A contains the upper
   *>          triangular part of the matrix A, and the strictly lower
   *>          triangular part of A is not referenced.  If UPLO = 'L', the
   *>          leading n by n lower triangular part of A contains the lower
   *>          triangular part of the matrix A, and the strictly upper
   *>          triangular part of A is not referenced.
   *>
   *>          On exit, if EQUED = 'Y', the equilibrated matrix:
   *>          diag(S) * A * diag(S).
   *> \endverbatim
   *>
   *> \param[in] LDA
   *> \verbatim
   *>          LDA is INTEGER
   *>          The leading dimension of the array A.  LDA >= max(N,1).
   *> \endverbatim
   *>
   *> \param[in] S
   *> \verbatim
   *>          S is DOUBLE PRECISION array, dimension (N)
   *>          The scale factors for A.
   *> \endverbatim
   *>
   *> \param[in] SCOND
   *> \verbatim
   *>          SCOND is DOUBLE PRECISION
   *>          Ratio of the smallest S(i) to the largest S(i).
   *> \endverbatim
   *>
   *> \param[in] AMAX
   *> \verbatim
   *>          AMAX is DOUBLE PRECISION
   *>          Absolute value of largest matrix entry.
   *> \endverbatim
   *>
   *> \param[out] EQUED
   *> \verbatim
   *>          EQUED is CHARACTER*1
   *>          Specifies whether or not equilibration was done.
   *>          = 'N':  No equilibration.
   *>          = 'Y':  Equilibration was done, i.e., A has been replaced by
   *>                  diag(S) * A * diag(S).
   *> \endverbatim
   *
   *> \par Internal Parameters:
   *  =========================
   *>
   *> \verbatim
   *>  THRESH is a threshold value used to decide if scaling should be done
   *>  based on the ratio of the scaling factors.  If SCOND < THRESH,
   *>  scaling is done.
   *>
   *>  LARGE and SMALL are threshold values used to decide if scaling should
   *>  be done based on the absolute size of the largest matrix element.
   *>  If AMAX > LARGE or AMAX < SMALL, scaling is done.
   *> \endverbatim
   *
   *  Authors:
   *  ========
   *
   *> \author Univ. of Tennessee 
   *> \author Univ. of California Berkeley 
   *> \author Univ. of Colorado Denver 
   *> \author NAG Ltd. 
   *
   *> \date November 2011
   *
   *> \ingroup complex16SYauxiliary
   *
   *  =====================================================================
       SUBROUTINE ZLAQSY( UPLO, N, A, LDA, S, SCOND, AMAX, EQUED )        SUBROUTINE ZLAQSY( UPLO, N, A, LDA, S, SCOND, AMAX, EQUED )
 *  *
 *  -- LAPACK auxiliary routine (version 3.2) --  *  -- LAPACK auxiliary routine (version 3.4.0) --
 *  -- LAPACK is a software package provided by Univ. of Tennessee,    --  *  -- LAPACK is a software package provided by Univ. of Tennessee,    --
 *  -- Univ. of California Berkeley, Univ. of Colorado Denver and NAG Ltd..--  *  -- Univ. of California Berkeley, Univ. of Colorado Denver and NAG Ltd..--
 *     November 2006  *     November 2011
 *  *
 *     .. Scalar Arguments ..  *     .. Scalar Arguments ..
       CHARACTER          EQUED, UPLO        CHARACTER          EQUED, UPLO
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       COMPLEX*16         A( LDA, * )        COMPLEX*16         A( LDA, * )
 *     ..  *     ..
 *  *
 *  Purpose  
 *  =======  
 *  
 *  ZLAQSY equilibrates a symmetric matrix A using the scaling factors  
 *  in the vector S.  
 *  
 *  Arguments  
 *  =========  
 *  
 *  UPLO    (input) CHARACTER*1  
 *          Specifies whether the upper or lower triangular part of the  
 *          symmetric matrix A is stored.  
 *          = 'U':  Upper triangular  
 *          = 'L':  Lower triangular  
 *  
 *  N       (input) INTEGER  
 *          The order of the matrix A.  N >= 0.  
 *  
 *  A       (input/output) COMPLEX*16 array, dimension (LDA,N)  
 *          On entry, the symmetric matrix A.  If UPLO = 'U', the leading  
 *          n by n upper triangular part of A contains the upper  
 *          triangular part of the matrix A, and the strictly lower  
 *          triangular part of A is not referenced.  If UPLO = 'L', the  
 *          leading n by n lower triangular part of A contains the lower  
 *          triangular part of the matrix A, and the strictly upper  
 *          triangular part of A is not referenced.  
 *  
 *          On exit, if EQUED = 'Y', the equilibrated matrix:  
 *          diag(S) * A * diag(S).  
 *  
 *  LDA     (input) INTEGER  
 *          The leading dimension of the array A.  LDA >= max(N,1).  
 *  
 *  S       (input) DOUBLE PRECISION array, dimension (N)  
 *          The scale factors for A.  
 *  
 *  SCOND   (input) DOUBLE PRECISION  
 *          Ratio of the smallest S(i) to the largest S(i).  
 *  
 *  AMAX    (input) DOUBLE PRECISION  
 *          Absolute value of largest matrix entry.  
 *  
 *  EQUED   (output) CHARACTER*1  
 *          Specifies whether or not equilibration was done.  
 *          = 'N':  No equilibration.  
 *          = 'Y':  Equilibration was done, i.e., A has been replaced by  
 *                  diag(S) * A * diag(S).  
 *  
 *  Internal Parameters  
 *  ===================  
 *  
 *  THRESH is a threshold value used to decide if scaling should be done  
 *  based on the ratio of the scaling factors.  If SCOND < THRESH,  
 *  scaling is done.  
 *  
 *  LARGE and SMALL are threshold values used to decide if scaling should  
 *  be done based on the absolute size of the largest matrix element.  
 *  If AMAX > LARGE or AMAX < SMALL, scaling is done.  
 *  
 *  =====================================================================  *  =====================================================================
 *  *
 *     .. Parameters ..  *     .. Parameters ..
Removed from v.1.7  
changed lines
  Added in v.1.8

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