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version 1.8, 2010/12/21 13:53:43
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version 1.9, 2011/07/22 07:38:14
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| SUBROUTINE ZGEQL2( M, N, A, LDA, TAU, WORK, INFO ) |
SUBROUTINE ZGEQL2( M, N, A, LDA, TAU, WORK, INFO ) |
| * |
* |
| * -- LAPACK routine (version 3.2.2) -- |
* -- LAPACK routine (version 3.3.1) -- |
| * -- 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..-- |
| * June 2010 |
* -- April 2011 -- |
| * |
* |
| * .. Scalar Arguments .. |
* .. Scalar Arguments .. |
| INTEGER INFO, LDA, M, N |
INTEGER INFO, LDA, M, N |
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| * |
* |
| * Each H(i) has the form |
* Each H(i) has the form |
| * |
* |
| * H(i) = I - tau * v * v' |
* H(i) = I - tau * v * v**H |
| * |
* |
| * where tau is a complex scalar, and v is a complex vector with |
* where tau is a complex scalar, and v is a complex vector with |
| * v(m-k+i+1:m) = 0 and v(m-k+i) = 1; v(1:m-k+i-1) is stored on exit in |
* v(m-k+i+1:m) = 0 and v(m-k+i) = 1; v(1:m-k+i-1) is stored on exit in |
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| ALPHA = A( M-K+I, N-K+I ) |
ALPHA = A( M-K+I, N-K+I ) |
| CALL ZLARFG( M-K+I, ALPHA, A( 1, N-K+I ), 1, TAU( I ) ) |
CALL ZLARFG( M-K+I, ALPHA, A( 1, N-K+I ), 1, TAU( I ) ) |
| * |
* |
| * Apply H(i)' to A(1:m-k+i,1:n-k+i-1) from the left |
* Apply H(i)**H to A(1:m-k+i,1:n-k+i-1) from the left |
| * |
* |
| A( M-K+I, N-K+I ) = ONE |
A( M-K+I, N-K+I ) = ONE |
| CALL ZLARF( 'Left', M-K+I, N-K+I-1, A( 1, N-K+I ), 1, |
CALL ZLARF( 'Left', M-K+I, N-K+I-1, A( 1, N-K+I ), 1, |
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