rpl/lapack/lapack/dtzrqf.f - diff

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version 1.4, 2010/08/06 15:32:37	version 1.5, 2010/08/07 13:18:08
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SUBROUTINE DTZRQF( M, N, A, LDA, TAU, INFO )	SUBROUTINE DTZRQF( M, N, A, LDA, TAU, INFO )
*	*
* -- LAPACK routine (version 3.2) --	* -- LAPACK routine (version 3.2.2) --
* -- 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 2006	* June 2010
*	*
* .. Scalar Arguments ..	* .. Scalar Arguments ..
INTEGER INFO, LDA, M, N	INTEGER INFO, LDA, M, N
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INTRINSIC MAX, MIN	INTRINSIC MAX, MIN
* ..	* ..
* .. External Subroutines ..	* .. External Subroutines ..
EXTERNAL DAXPY, DCOPY, DGEMV, DGER, DLARFP, XERBLA	EXTERNAL DAXPY, DCOPY, DGEMV, DGER, DLARFG, XERBLA
* ..	* ..
* .. Executable Statements ..	* .. Executable Statements ..
*	*
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* Use a Householder reflection to zero the kth row of A.	* Use a Householder reflection to zero the kth row of A.
* First set up the reflection.	* First set up the reflection.
*	*
CALL DLARFP( N-M+1, A( K, K ), A( K, M1 ), LDA, TAU( K ) )	CALL DLARFG( N-M+1, A( K, K ), A( K, M1 ), LDA, TAU( K ) )
*	*
IF( ( TAU( K ).NE.ZERO ) .AND. ( K.GT.1 ) ) THEN	IF( ( TAU( K ).NE.ZERO ) .AND. ( K.GT.1 ) ) THEN
*	*