--- rpl/lapack/lapack/dlartg.f 2010/04/21 13:45:19 1.2
+++ rpl/lapack/lapack/dlartg.f 2017/06/17 11:06:25 1.16
@@ -1,52 +1,110 @@
- SUBROUTINE DLARTG( F, G, CS, SN, R )
-*
-* -- LAPACK auxiliary routine (version 3.2) --
-* -- LAPACK is a software package provided by Univ. of Tennessee, --
-* -- Univ. of California Berkeley, Univ. of Colorado Denver and NAG Ltd..--
-* November 2006
-*
-* .. Scalar Arguments ..
- DOUBLE PRECISION CS, F, G, R, SN
-* ..
-*
-* Purpose
-* =======
-*
-* DLARTG generate a plane rotation so that
+*> \brief \b DLARTG generates a plane rotation with real cosine and real sine.
*
-* [ CS SN ] . [ F ] = [ R ] where CS**2 + SN**2 = 1.
-* [ -SN CS ] [ G ] [ 0 ]
+* =========== DOCUMENTATION ===========
*
-* This is a slower, more accurate version of the BLAS1 routine DROTG,
-* with the following other differences:
-* F and G are unchanged on return.
-* If G=0, then CS=1 and SN=0.
-* If F=0 and (G .ne. 0), then CS=0 and SN=1 without doing any
-* floating point operations (saves work in DBDSQR when
-* there are zeros on the diagonal).
+* Online html documentation available at
+* http://www.netlib.org/lapack/explore-html/
*
-* If F exceeds G in magnitude, CS will be positive.
+*> \htmlonly
+*> Download DLARTG + dependencies
+*>
+*> [TGZ]
+*>
+*> [ZIP]
+*>
+*> [TXT]
+*> \endhtmlonly
+*
+* Definition:
+* ===========
+*
+* SUBROUTINE DLARTG( F, G, CS, SN, R )
+*
+* .. Scalar Arguments ..
+* DOUBLE PRECISION CS, F, G, R, SN
+* ..
+*
+*
+*> \par Purpose:
+* =============
+*>
+*> \verbatim
+*>
+*> DLARTG generate a plane rotation so that
+*>
+*> [ CS SN ] . [ F ] = [ R ] where CS**2 + SN**2 = 1.
+*> [ -SN CS ] [ G ] [ 0 ]
+*>
+*> This is a slower, more accurate version of the BLAS1 routine DROTG,
+*> with the following other differences:
+*> F and G are unchanged on return.
+*> If G=0, then CS=1 and SN=0.
+*> If F=0 and (G .ne. 0), then CS=0 and SN=1 without doing any
+*> floating point operations (saves work in DBDSQR when
+*> there are zeros on the diagonal).
+*>
+*> If F exceeds G in magnitude, CS will be positive.
+*> \endverbatim
+*
+* Arguments:
+* ==========
+*
+*> \param[in] F
+*> \verbatim
+*> F is DOUBLE PRECISION
+*> The first component of vector to be rotated.
+*> \endverbatim
+*>
+*> \param[in] G
+*> \verbatim
+*> G is DOUBLE PRECISION
+*> The second component of vector to be rotated.
+*> \endverbatim
+*>
+*> \param[out] CS
+*> \verbatim
+*> CS is DOUBLE PRECISION
+*> The cosine of the rotation.
+*> \endverbatim
+*>
+*> \param[out] SN
+*> \verbatim
+*> SN is DOUBLE PRECISION
+*> The sine of the rotation.
+*> \endverbatim
+*>
+*> \param[out] R
+*> \verbatim
+*> R is DOUBLE PRECISION
+*> The nonzero component of the rotated vector.
+*>
+*> This version has a few statements commented out for thread safety
+*> (machine parameters are computed on each entry). 10 feb 03, SJH.
+*> \endverbatim
+*
+* Authors:
+* ========
+*
+*> \author Univ. of Tennessee
+*> \author Univ. of California Berkeley
+*> \author Univ. of Colorado Denver
+*> \author NAG Ltd.
*
-* Arguments
-* =========
+*> \date December 2016
*
-* F (input) DOUBLE PRECISION
-* The first component of vector to be rotated.
+*> \ingroup OTHERauxiliary
*
-* G (input) DOUBLE PRECISION
-* The second component of vector to be rotated.
-*
-* CS (output) DOUBLE PRECISION
-* The cosine of the rotation.
-*
-* SN (output) DOUBLE PRECISION
-* The sine of the rotation.
+* =====================================================================
+ SUBROUTINE DLARTG( F, G, CS, SN, R )
*
-* R (output) DOUBLE PRECISION
-* The nonzero component of the rotated vector.
+* -- LAPACK auxiliary routine (version 3.7.0) --
+* -- LAPACK is a software package provided by Univ. of Tennessee, --
+* -- Univ. of California Berkeley, Univ. of Colorado Denver and NAG Ltd..--
+* December 2016
*
-* This version has a few statements commented out for thread safety
-* (machine parameters are computed on each entry). 10 feb 03, SJH.
+* .. Scalar Arguments ..
+ DOUBLE PRECISION CS, F, G, R, SN
+* ..
*
* =====================================================================
*