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version 1.4, 2010/08/06 15:32:39
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version 1.5, 2010/08/07 13:18:09
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| SUBROUTINE ZGEQR2( M, N, A, LDA, TAU, WORK, INFO ) |
SUBROUTINE ZGEQR2( 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, ZLARF, ZLARFP |
EXTERNAL XERBLA, ZLARF, ZLARFG |
| * .. |
* .. |
| * .. Intrinsic Functions .. |
* .. Intrinsic Functions .. |
| INTRINSIC DCONJG, MAX, MIN |
INTRINSIC DCONJG, MAX, MIN |
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| * |
* |
| * Generate elementary reflector H(i) to annihilate A(i+1:m,i) |
* Generate elementary reflector H(i) to annihilate A(i+1:m,i) |
| * |
* |
| CALL ZLARFP( M-I+1, A( I, I ), A( MIN( I+1, M ), I ), 1, |
CALL ZLARFG( M-I+1, A( I, I ), A( MIN( I+1, M ), I ), 1, |
| $ TAU( I ) ) |
$ TAU( I ) ) |
| IF( I.LT.N ) THEN |
IF( I.LT.N ) THEN |
| * |
* |
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