version 1.3, 2010/08/13 21:03:59
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version 1.6, 2011/07/22 07:38:12
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SUBROUTINE DTFTTP( TRANSR, UPLO, N, ARF, AP, INFO ) |
SUBROUTINE DTFTTP( TRANSR, UPLO, N, ARF, AP, 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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* Quick return if possible |
* Quick return if possible |
* |
* |
IF( N.EQ.0 ) |
IF( N.EQ.0 ) |
+ RETURN |
$ RETURN |
* |
* |
IF( N.EQ.1 ) THEN |
IF( N.EQ.1 ) THEN |
IF( NORMALTRANSR ) THEN |
IF( NORMALTRANSR ) THEN |
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* ARF^C has lda rows and n+1-noe cols |
* ARF^C has lda rows and n+1-noe cols |
* |
* |
IF( .NOT.NORMALTRANSR ) |
IF( .NOT.NORMALTRANSR ) |
+ LDA = ( N+1 ) / 2 |
$ LDA = ( N+1 ) / 2 |
* |
* |
* start execution: there are eight cases |
* start execution: there are eight cases |
* |
* |