--- rpl/lapack/lapack/dpocon.f	2010/08/07 13:22:23	1.5
+++ rpl/lapack/lapack/dpocon.f	2023/08/07 08:39:03	1.18
@@ -1,12 +1,127 @@
+*> \brief \b DPOCON
+*
+*  =========== DOCUMENTATION ===========
+*
+* Online html documentation available at
+*            http://www.netlib.org/lapack/explore-html/
+*
+*> \htmlonly
+*> Download DPOCON + dependencies
+*> <a href="http://www.netlib.org/cgi-bin/netlibfiles.tgz?format=tgz&filename=/lapack/lapack_routine/dpocon.f">
+*> [TGZ]</a>
+*> <a href="http://www.netlib.org/cgi-bin/netlibfiles.zip?format=zip&filename=/lapack/lapack_routine/dpocon.f">
+*> [ZIP]</a>
+*> <a href="http://www.netlib.org/cgi-bin/netlibfiles.txt?format=txt&filename=/lapack/lapack_routine/dpocon.f">
+*> [TXT]</a>
+*> \endhtmlonly
+*
+*  Definition:
+*  ===========
+*
+*       SUBROUTINE DPOCON( UPLO, N, A, LDA, ANORM, RCOND, WORK, IWORK,
+*                          INFO )
+*
+*       .. Scalar Arguments ..
+*       CHARACTER          UPLO
+*       INTEGER            INFO, LDA, N
+*       DOUBLE PRECISION   ANORM, RCOND
+*       ..
+*       .. Array Arguments ..
+*       INTEGER            IWORK( * )
+*       DOUBLE PRECISION   A( LDA, * ), WORK( * )
+*       ..
+*
+*
+*> \par Purpose:
+*  =============
+*>
+*> \verbatim
+*>
+*> DPOCON estimates the reciprocal of the condition number (in the
+*> 1-norm) of a real symmetric positive definite matrix using the
+*> Cholesky factorization A = U**T*U or A = L*L**T computed by DPOTRF.
+*>
+*> An estimate is obtained for norm(inv(A)), and the reciprocal of the
+*> condition number is computed as RCOND = 1 / (ANORM * norm(inv(A))).
+*> \endverbatim
+*
+*  Arguments:
+*  ==========
+*
+*> \param[in] UPLO
+*> \verbatim
+*>          UPLO is CHARACTER*1
+*>          = 'U':  Upper triangle of A is stored;
+*>          = 'L':  Lower triangle of A is stored.
+*> \endverbatim
+*>
+*> \param[in] N
+*> \verbatim
+*>          N is INTEGER
+*>          The order of the matrix A.  N >= 0.
+*> \endverbatim
+*>
+*> \param[in] A
+*> \verbatim
+*>          A is DOUBLE PRECISION array, dimension (LDA,N)
+*>          The triangular factor U or L from the Cholesky factorization
+*>          A = U**T*U or A = L*L**T, as computed by DPOTRF.
+*> \endverbatim
+*>
+*> \param[in] LDA
+*> \verbatim
+*>          LDA is INTEGER
+*>          The leading dimension of the array A.  LDA >= max(1,N).
+*> \endverbatim
+*>
+*> \param[in] ANORM
+*> \verbatim
+*>          ANORM is DOUBLE PRECISION
+*>          The 1-norm (or infinity-norm) of the symmetric matrix A.
+*> \endverbatim
+*>
+*> \param[out] RCOND
+*> \verbatim
+*>          RCOND is DOUBLE PRECISION
+*>          The reciprocal of the condition number of the matrix A,
+*>          computed as RCOND = 1/(ANORM * AINVNM), where AINVNM is an
+*>          estimate of the 1-norm of inv(A) computed in this routine.
+*> \endverbatim
+*>
+*> \param[out] WORK
+*> \verbatim
+*>          WORK is DOUBLE PRECISION array, dimension (3*N)
+*> \endverbatim
+*>
+*> \param[out] IWORK
+*> \verbatim
+*>          IWORK is INTEGER array, dimension (N)
+*> \endverbatim
+*>
+*> \param[out] INFO
+*> \verbatim
+*>          INFO is INTEGER
+*>          = 0:  successful exit
+*>          < 0:  if INFO = -i, the i-th argument had an illegal value
+*> \endverbatim
+*
+*  Authors:
+*  ========
+*
+*> \author Univ. of Tennessee
+*> \author Univ. of California Berkeley
+*> \author Univ. of Colorado Denver
+*> \author NAG Ltd.
+*
+*> \ingroup doublePOcomputational
+*
+*  =====================================================================
       SUBROUTINE DPOCON( UPLO, N, A, LDA, ANORM, RCOND, WORK, IWORK,
      $                   INFO )
 *
-*  -- LAPACK routine (version 3.2) --
+*  -- LAPACK computational routine --
 *  -- LAPACK is a software package provided by Univ. of Tennessee,    --
 *  -- Univ. of California Berkeley, Univ. of Colorado Denver and NAG Ltd..--
-*     November 2006
-*
-*     Modified to call DLACN2 in place of DLACON, 5 Feb 03, SJH.
 *
 *     .. Scalar Arguments ..
       CHARACTER          UPLO
@@ -18,49 +133,6 @@
       DOUBLE PRECISION   A( LDA, * ), WORK( * )
 *     ..
 *
-*  Purpose
-*  =======
-*
-*  DPOCON estimates the reciprocal of the condition number (in the
-*  1-norm) of a real symmetric positive definite matrix using the
-*  Cholesky factorization A = U**T*U or A = L*L**T computed by DPOTRF.
-*
-*  An estimate is obtained for norm(inv(A)), and the reciprocal of the
-*  condition number is computed as RCOND = 1 / (ANORM * norm(inv(A))).
-*
-*  Arguments
-*  =========
-*
-*  UPLO    (input) CHARACTER*1
-*          = 'U':  Upper triangle of A is stored;
-*          = 'L':  Lower triangle of A is stored.
-*
-*  N       (input) INTEGER
-*          The order of the matrix A.  N >= 0.
-*
-*  A       (input) DOUBLE PRECISION array, dimension (LDA,N)
-*          The triangular factor U or L from the Cholesky factorization
-*          A = U**T*U or A = L*L**T, as computed by DPOTRF.
-*
-*  LDA     (input) INTEGER
-*          The leading dimension of the array A.  LDA >= max(1,N).
-*
-*  ANORM   (input) DOUBLE PRECISION
-*          The 1-norm (or infinity-norm) of the symmetric matrix A.
-*
-*  RCOND   (output) DOUBLE PRECISION
-*          The reciprocal of the condition number of the matrix A,
-*          computed as RCOND = 1/(ANORM * AINVNM), where AINVNM is an
-*          estimate of the 1-norm of inv(A) computed in this routine.
-*
-*  WORK    (workspace) DOUBLE PRECISION array, dimension (3*N)
-*
-*  IWORK   (workspace) INTEGER array, dimension (N)
-*
-*  INFO    (output) INTEGER
-*          = 0:  successful exit
-*          < 0:  if INFO = -i, the i-th argument had an illegal value
-*
 *  =====================================================================
 *
 *     .. Parameters ..
@@ -129,7 +201,7 @@
       IF( KASE.NE.0 ) THEN
          IF( UPPER ) THEN
 *
-*           Multiply by inv(U').
+*           Multiply by inv(U**T).
 *
             CALL DLATRS( 'Upper', 'Transpose', 'Non-unit', NORMIN, N, A,
      $                   LDA, WORK, SCALEL, WORK( 2*N+1 ), INFO )
@@ -147,7 +219,7 @@
      $                   A, LDA, WORK, SCALEL, WORK( 2*N+1 ), INFO )
             NORMIN = 'Y'
 *
-*           Multiply by inv(L').
+*           Multiply by inv(L**T).
 *
             CALL DLATRS( 'Lower', 'Transpose', 'Non-unit', NORMIN, N, A,
      $                   LDA, WORK, SCALEU, WORK( 2*N+1 ), INFO )