version 1.17, 2017/06/17 11:07:06
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version 1.19, 2023/08/07 08:39:43
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*> \author Univ. of Colorado Denver |
*> \author Univ. of Colorado Denver |
*> \author NAG Ltd. |
*> \author NAG Ltd. |
* |
* |
*> \date April 2012 |
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* |
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*> \ingroup complex16GBcomputational |
*> \ingroup complex16GBcomputational |
* |
* |
* ===================================================================== |
* ===================================================================== |
SUBROUTINE ZUNGBR( VECT, M, N, K, A, LDA, TAU, WORK, LWORK, INFO ) |
SUBROUTINE ZUNGBR( VECT, M, N, K, A, LDA, TAU, WORK, LWORK, INFO ) |
* |
* |
* -- LAPACK computational routine (version 3.7.0) -- |
* -- LAPACK computational routine -- |
* -- 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..-- |
* April 2012 |
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* |
* |
* .. Scalar Arguments .. |
* .. Scalar Arguments .. |
CHARACTER VECT |
CHARACTER VECT |
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CALL ZUNGQR( M, N, K, A, LDA, TAU, WORK, -1, IINFO ) |
CALL ZUNGQR( M, N, K, A, LDA, TAU, WORK, -1, IINFO ) |
ELSE |
ELSE |
IF( M.GT.1 ) THEN |
IF( M.GT.1 ) THEN |
CALL ZUNGQR( M-1, M-1, M-1, A( 2, 2 ), LDA, TAU, WORK, |
CALL ZUNGQR( M-1, M-1, M-1, A, LDA, TAU, WORK, -1, |
$ -1, IINFO ) |
$ IINFO ) |
END IF |
END IF |
END IF |
END IF |
ELSE |
ELSE |
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CALL ZUNGLQ( M, N, K, A, LDA, TAU, WORK, -1, IINFO ) |
CALL ZUNGLQ( M, N, K, A, LDA, TAU, WORK, -1, IINFO ) |
ELSE |
ELSE |
IF( N.GT.1 ) THEN |
IF( N.GT.1 ) THEN |
CALL ZUNGLQ( N-1, N-1, N-1, A( 2, 2 ), LDA, TAU, WORK, |
CALL ZUNGLQ( N-1, N-1, N-1, A, LDA, TAU, WORK, -1, |
$ -1, IINFO ) |
$ IINFO ) |
END IF |
END IF |
END IF |
END IF |
END IF |
END IF |
LWKOPT = WORK( 1 ) |
LWKOPT = INT( DBLE( WORK( 1 ) ) ) |
LWKOPT = MAX (LWKOPT, MN) |
LWKOPT = MAX (LWKOPT, MN) |
END IF |
END IF |
* |
* |