version 1.1, 2010/01/26 15:22:46
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version 1.5, 2010/08/07 13:18:09
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SUBROUTINE ZGERQ2( M, N, A, LDA, TAU, WORK, INFO ) |
SUBROUTINE ZGERQ2( 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-K+I, A( M-K+I, 1 ), LDA ) |
CALL ZLACGV( N-K+I, A( M-K+I, 1 ), LDA ) |
ALPHA = A( M-K+I, N-K+I ) |
ALPHA = A( M-K+I, N-K+I ) |
CALL ZLARFP( N-K+I, ALPHA, A( M-K+I, 1 ), LDA, TAU( I ) ) |
CALL ZLARFG( N-K+I, ALPHA, A( M-K+I, 1 ), LDA, TAU( I ) ) |
* |
* |
* Apply H(i) to A(1:m-k+i-1,1:n-k+i) from the right |
* Apply H(i) to A(1:m-k+i-1,1:n-k+i) from the right |
* |
* |