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version 1.7, 2010/12/21 13:53:47
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version 1.8, 2011/07/22 07:38:15
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| SUBROUTINE ZHPGST( ITYPE, UPLO, N, AP, BP, INFO ) |
SUBROUTINE ZHPGST( ITYPE, UPLO, N, AP, BP, INFO ) |
| * |
* |
| * -- LAPACK routine (version 3.2) -- |
* -- 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..-- |
| * November 2006 |
* -- April 2011 -- |
| * |
* |
| * .. Scalar Arguments .. |
* .. Scalar Arguments .. |
| CHARACTER UPLO |
CHARACTER UPLO |
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| IF( ITYPE.EQ.1 ) THEN |
IF( ITYPE.EQ.1 ) THEN |
| IF( UPPER ) THEN |
IF( UPPER ) THEN |
| * |
* |
| * Compute inv(U')*A*inv(U) |
* Compute inv(U**H)*A*inv(U) |
| * |
* |
| * J1 and JJ are the indices of A(1,j) and A(j,j) |
* J1 and JJ are the indices of A(1,j) and A(j,j) |
| * |
* |
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| 10 CONTINUE |
10 CONTINUE |
| ELSE |
ELSE |
| * |
* |
| * Compute inv(L)*A*inv(L') |
* Compute inv(L)*A*inv(L**H) |
| * |
* |
| * KK and K1K1 are the indices of A(k,k) and A(k+1,k+1) |
* KK and K1K1 are the indices of A(k,k) and A(k+1,k+1) |
| * |
* |
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| ELSE |
ELSE |
| IF( UPPER ) THEN |
IF( UPPER ) THEN |
| * |
* |
| * Compute U*A*U' |
* Compute U*A*U**H |
| * |
* |
| * K1 and KK are the indices of A(1,k) and A(k,k) |
* K1 and KK are the indices of A(1,k) and A(k,k) |
| * |
* |
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| 30 CONTINUE |
30 CONTINUE |
| ELSE |
ELSE |
| * |
* |
| * Compute L'*A*L |
* Compute L**H *A*L |
| * |
* |
| * JJ and J1J1 are the indices of A(j,j) and A(j+1,j+1) |
* JJ and J1J1 are the indices of A(j,j) and A(j+1,j+1) |
| * |
* |
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