version 1.3, 2010/08/06 15:28:51
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version 1.5, 2010/08/07 13:18:08
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SUBROUTINE ZGELQ2( M, N, A, LDA, TAU, WORK, INFO ) |
SUBROUTINE ZGELQ2( M, N, A, LDA, TAU, WORK, 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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COMPLEX*16 ALPHA |
COMPLEX*16 ALPHA |
* .. |
* .. |
* .. External Subroutines .. |
* .. External Subroutines .. |
EXTERNAL XERBLA, ZLACGV, ZLARF, ZLARFP |
EXTERNAL XERBLA, ZLACGV, ZLARF, ZLARFG |
* .. |
* .. |
* .. Intrinsic Functions .. |
* .. Intrinsic Functions .. |
INTRINSIC MAX, MIN |
INTRINSIC MAX, MIN |
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* |
* |
CALL ZLACGV( N-I+1, A( I, I ), LDA ) |
CALL ZLACGV( N-I+1, A( I, I ), LDA ) |
ALPHA = A( I, I ) |
ALPHA = A( I, I ) |
CALL ZLARFP( N-I+1, ALPHA, A( I, MIN( I+1, N ) ), LDA, |
CALL ZLARFG( N-I+1, ALPHA, A( I, MIN( I+1, N ) ), LDA, |
$ TAU( I ) ) |
$ TAU( I ) ) |
IF( I.LT.M ) THEN |
IF( I.LT.M ) THEN |
* |
* |