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Diff for /rpl/lapack/lapack/dgsvj0.f between versions 1.19 and 1.21

version 1.19, 2018/05/29 07:17:54 version 1.21, 2023/08/07 08:38:51
Line 117 Line 117
 *> \param[in] MV  *> \param[in] MV
 *> \verbatim  *> \verbatim
 *>          MV is INTEGER  *>          MV is INTEGER
 *>          If JOBV .EQ. 'A', then MV rows of V are post-multipled by a  *>          If JOBV = 'A', then MV rows of V are post-multipled by a
 *>                           sequence of Jacobi rotations.  *>                           sequence of Jacobi rotations.
 *>          If JOBV = 'N',   then MV is not referenced.  *>          If JOBV = 'N',   then MV is not referenced.
 *> \endverbatim  *> \endverbatim
Line 125 Line 125
 *> \param[in,out] V  *> \param[in,out] V
 *> \verbatim  *> \verbatim
 *>          V is DOUBLE PRECISION array, dimension (LDV,N)  *>          V is DOUBLE PRECISION array, dimension (LDV,N)
 *>          If JOBV .EQ. 'V' then N rows of V are post-multipled by a  *>          If JOBV = 'V' then N rows of V are post-multipled by a
 *>                           sequence of Jacobi rotations.  *>                           sequence of Jacobi rotations.
 *>          If JOBV .EQ. 'A' then MV rows of V are post-multipled by a  *>          If JOBV = 'A' then MV rows of V are post-multipled by a
 *>                           sequence of Jacobi rotations.  *>                           sequence of Jacobi rotations.
 *>          If JOBV = 'N',   then V is not referenced.  *>          If JOBV = 'N',   then V is not referenced.
 *> \endverbatim  *> \endverbatim
Line 136 Line 136
 *> \verbatim  *> \verbatim
 *>          LDV is INTEGER  *>          LDV is INTEGER
 *>          The leading dimension of the array V,  LDV >= 1.  *>          The leading dimension of the array V,  LDV >= 1.
 *>          If JOBV = 'V', LDV .GE. N.  *>          If JOBV = 'V', LDV >= N.
 *>          If JOBV = 'A', LDV .GE. MV.  *>          If JOBV = 'A', LDV >= MV.
 *> \endverbatim  *> \endverbatim
 *>  *>
 *> \param[in] EPS  *> \param[in] EPS
Line 157 Line 157
 *>          TOL is DOUBLE PRECISION  *>          TOL is DOUBLE PRECISION
 *>          TOL is the threshold for Jacobi rotations. For a pair  *>          TOL is the threshold for Jacobi rotations. For a pair
 *>          A(:,p), A(:,q) of pivot columns, the Jacobi rotation is  *>          A(:,p), A(:,q) of pivot columns, the Jacobi rotation is
 *>          applied only if DABS(COS(angle(A(:,p),A(:,q)))) .GT. TOL.  *>          applied only if DABS(COS(angle(A(:,p),A(:,q)))) > TOL.
 *> \endverbatim  *> \endverbatim
 *>  *>
 *> \param[in] NSWEEP  *> \param[in] NSWEEP
Line 175 Line 175
 *> \param[in] LWORK  *> \param[in] LWORK
 *> \verbatim  *> \verbatim
 *>          LWORK is INTEGER  *>          LWORK is INTEGER
 *>          LWORK is the dimension of WORK. LWORK .GE. M.  *>          LWORK is the dimension of WORK. LWORK >= M.
 *> \endverbatim  *> \endverbatim
 *>  *>
 *> \param[out] INFO  *> \param[out] INFO
 *> \verbatim  *> \verbatim
 *>          INFO is INTEGER  *>          INFO is INTEGER
 *>          = 0 : successful exit.  *>          = 0:  successful exit.
 *>          < 0 : if INFO = -i, then the i-th argument had an illegal value  *>          < 0:  if INFO = -i, then the i-th argument had an illegal value
 *> \endverbatim  *> \endverbatim
 *  *
 *  Authors:  *  Authors:
Line 193 Line 193
 *> \author Univ. of Colorado Denver  *> \author Univ. of Colorado Denver
 *> \author NAG Ltd.  *> \author NAG Ltd.
 *  *
 *> \date November 2017  
 *  
 *> \ingroup doubleOTHERcomputational  *> \ingroup doubleOTHERcomputational
 *  *
 *> \par Further Details:  *> \par Further Details:
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       SUBROUTINE DGSVJ0( JOBV, M, N, A, LDA, D, SVA, MV, V, LDV, EPS,        SUBROUTINE DGSVJ0( JOBV, M, N, A, LDA, D, SVA, MV, V, LDV, EPS,
      $                   SFMIN, TOL, NSWEEP, WORK, LWORK, INFO )       $                   SFMIN, TOL, NSWEEP, WORK, LWORK, INFO )
 *  *
 *  -- LAPACK computational routine (version 3.8.0) --  *  -- LAPACK computational routine --
 *  -- 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 2017  
 *  *
 *     .. Scalar Arguments ..  *     .. Scalar Arguments ..
       INTEGER            INFO, LDA, LDV, LWORK, M, MV, N, NSWEEP        INTEGER            INFO, LDA, LDV, LWORK, M, MV, N, NSWEEP
Line 392 Line 389
 *        Some BLAS implementations compute DNRM2(M,A(1,p),1)  *        Some BLAS implementations compute DNRM2(M,A(1,p),1)
 *        as DSQRT(DDOT(M,A(1,p),1,A(1,p),1)), which may result in  *        as DSQRT(DDOT(M,A(1,p),1,A(1,p),1)), which may result in
 *        overflow for ||A(:,p)||_2 > DSQRT(overflow_threshold), and  *        overflow for ||A(:,p)||_2 > DSQRT(overflow_threshold), and
 *        undeflow for ||A(:,p)||_2 < DSQRT(underflow_threshold).  *        underflow for ||A(:,p)||_2 < DSQRT(underflow_threshold).
 *        Hence, DNRM2 cannot be trusted, not even in the case when  *        Hence, DNRM2 cannot be trusted, not even in the case when
 *        the true norm is far from the under(over)flow boundaries.  *        the true norm is far from the under(over)flow boundaries.
 *        If properly implemented DNRM2 is available, the IF-THEN-ELSE  *        If properly implemented DNRM2 is available, the IF-THEN-ELSE
Line 1045 Line 1042
   
  1993 CONTINUE   1993 CONTINUE
 *     end i=1:NSWEEP loop  *     end i=1:NSWEEP loop
 * #:) Reaching this point means that the procedure has comleted the given  * #:) Reaching this point means that the procedure has completed the given
 *     number of iterations.  *     number of iterations.
       INFO = NSWEEP - 1        INFO = NSWEEP - 1
       GO TO 1995        GO TO 1995
Removed from v.1.19  
changed lines
  Added in v.1.21

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