version 1.2, 2010/08/07 13:22:27
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version 1.6, 2011/07/22 07:38:12
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SUBROUTINE DTFTTR( TRANSR, UPLO, N, ARF, A, LDA, INFO ) |
SUBROUTINE DTFTTR( TRANSR, UPLO, N, ARF, A, LDA, INFO ) |
* |
* |
* -- LAPACK routine (version 3.2.2) -- |
* -- LAPACK routine (version 3.3.1) -- |
* |
* |
* -- Contributed by Fred Gustavson of the IBM Watson Research Center -- |
* -- Contributed by Fred Gustavson of the IBM Watson Research Center -- |
* -- June 2010 -- |
* -- April 2011 -- |
* |
* |
* -- 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..-- |
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* Arguments |
* Arguments |
* ========= |
* ========= |
* |
* |
* TRANSR (input) CHARACTER |
* TRANSR (input) CHARACTER*1 |
* = 'N': ARF is in Normal format; |
* = 'N': ARF is in Normal format; |
* = 'T': ARF is in Transpose format. |
* = 'T': ARF is in Transpose format. |
* |
* |
* UPLO (input) CHARACTER |
* UPLO (input) CHARACTER*1 |
* = 'U': A is upper triangular; |
* = 'U': A is upper triangular; |
* = 'L': A is lower triangular. |
* = 'L': A is lower triangular. |
* |
* |
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K = N / 2 |
K = N / 2 |
NISODD = .FALSE. |
NISODD = .FALSE. |
IF( .NOT.LOWER ) |
IF( .NOT.LOWER ) |
+ NP1X2 = N + N + 2 |
$ NP1X2 = N + N + 2 |
ELSE |
ELSE |
NISODD = .TRUE. |
NISODD = .TRUE. |
IF( .NOT.LOWER ) |
IF( .NOT.LOWER ) |
+ NX2 = N + N |
$ NX2 = N + N |
END IF |
END IF |
* |
* |
IF( NISODD ) THEN |
IF( NISODD ) THEN |