--- rpl/lapack/blas/drotg.f	2011/07/22 07:38:01	1.7
+++ rpl/lapack/blas/drotg.f	2017/06/17 10:53:43	1.13
@@ -1,17 +1,59 @@
-      SUBROUTINE DROTG(DA,DB,C,S)
-*     .. Scalar Arguments ..
-      DOUBLE PRECISION C,DA,DB,S
-*     ..
+*> \brief \b DROTG
+*
+*  =========== DOCUMENTATION ===========
+*
+* Online html documentation available at
+*            http://www.netlib.org/lapack/explore-html/
+*
+*  Definition:
+*  ===========
+*
+*       SUBROUTINE DROTG(DA,DB,C,S)
+*
+*       .. Scalar Arguments ..
+*       DOUBLE PRECISION C,DA,DB,S
+*       ..
+*
 *
-*  Purpose
-*  =======
+*> \par Purpose:
+*  =============
+*>
+*> \verbatim
+*>
+*>    DROTG construct givens plane rotation.
+*> \endverbatim
 *
-*     DROTG construct givens plane rotation.
+*  Authors:
+*  ========
 *
-*  Further Details
-*  ===============
+*> \author Univ. of Tennessee
+*> \author Univ. of California Berkeley
+*> \author Univ. of Colorado Denver
+*> \author NAG Ltd.
 *
-*     jack dongarra, linpack, 3/11/78.
+*> \date December 2016
+*
+*> \ingroup double_blas_level1
+*
+*> \par Further Details:
+*  =====================
+*>
+*> \verbatim
+*>
+*>     jack dongarra, linpack, 3/11/78.
+*> \endverbatim
+*>
+*  =====================================================================
+      SUBROUTINE DROTG(DA,DB,C,S)
+*
+*  -- Reference BLAS level1 routine (version 3.7.0) --
+*  -- Reference BLAS is a software package provided by Univ. of Tennessee,    --
+*  -- Univ. of California Berkeley, Univ. of Colorado Denver and NAG Ltd..--
+*     December 2016
+*
+*     .. Scalar Arguments ..
+      DOUBLE PRECISION C,DA,DB,S
+*     ..
 *
 *  =====================================================================
 *