--- rpl/lapack/lapack/dlarfg.f 2011/11/21 22:19:33 1.10
+++ rpl/lapack/lapack/dlarfg.f 2018/05/29 06:55:18 1.18
@@ -1,25 +1,25 @@
-*> \brief \b DLARFG
+*> \brief \b DLARFG generates an elementary reflector (Householder matrix).
*
* =========== DOCUMENTATION ===========
*
-* Online html documentation available at
-* http://www.netlib.org/lapack/explore-html/
+* Online html documentation available at
+* http://www.netlib.org/lapack/explore-html/
*
*> \htmlonly
-*> Download DLARFG + dependencies
-*>
-*> [TGZ]
-*>
-*> [ZIP]
-*>
+*> Download DLARFG + dependencies
+*>
+*> [TGZ]
+*>
+*> [ZIP]
+*>
*> [TXT]
-*> \endhtmlonly
+*> \endhtmlonly
*
* Definition:
* ===========
*
* SUBROUTINE DLARFG( N, ALPHA, X, INCX, TAU )
-*
+*
* .. Scalar Arguments ..
* INTEGER INCX, N
* DOUBLE PRECISION ALPHA, TAU
@@ -27,7 +27,7 @@
* .. Array Arguments ..
* DOUBLE PRECISION X( * )
* ..
-*
+*
*
*> \par Purpose:
* =============
@@ -94,22 +94,22 @@
* Authors:
* ========
*
-*> \author Univ. of Tennessee
-*> \author Univ. of California Berkeley
-*> \author Univ. of Colorado Denver
-*> \author NAG Ltd.
+*> \author Univ. of Tennessee
+*> \author Univ. of California Berkeley
+*> \author Univ. of Colorado Denver
+*> \author NAG Ltd.
*
-*> \date November 2011
+*> \date November 2017
*
*> \ingroup doubleOTHERauxiliary
*
* =====================================================================
SUBROUTINE DLARFG( N, ALPHA, X, INCX, TAU )
*
-* -- LAPACK auxiliary routine (version 3.4.0) --
+* -- LAPACK auxiliary routine (version 3.8.0) --
* -- LAPACK is a software package provided by Univ. of Tennessee, --
* -- Univ. of California Berkeley, Univ. of Colorado Denver and NAG Ltd..--
-* November 2011
+* November 2017
*
* .. Scalar Arguments ..
INTEGER INCX, N
@@ -170,7 +170,7 @@
CALL DSCAL( N-1, RSAFMN, X, INCX )
BETA = BETA*RSAFMN
ALPHA = ALPHA*RSAFMN
- IF( ABS( BETA ).LT.SAFMIN )
+ IF( (ABS( BETA ).LT.SAFMIN) .AND. (KNT .LT. 20) )
$ GO TO 10
*
* New BETA is at most 1, at least SAFMIN