version 1.1.1.1, 2010/01/26 15:22:46
|
version 1.8, 2010/12/21 13:53:32
|
Line 3
|
Line 3
|
$ SPDIAM, CLGAPL, CLGAPR, PIVMIN, SIGMA, |
$ SPDIAM, CLGAPL, CLGAPR, PIVMIN, SIGMA, |
$ DPLUS, LPLUS, WORK, INFO ) |
$ DPLUS, LPLUS, WORK, INFO ) |
* |
* |
* -- LAPACK auxiliary routine (version 3.2) -- |
* -- LAPACK auxiliary 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 CLSTRT, CLEND, INFO, N |
INTEGER CLSTRT, CLEND, INFO, N |
Line 48
|
Line 48
|
* CLEND (input) INTEGER |
* CLEND (input) INTEGER |
* The index of the last eigenvalue in the cluster. |
* The index of the last eigenvalue in the cluster. |
* |
* |
* W (input) DOUBLE PRECISION array, dimension >= (CLEND-CLSTRT+1) |
* W (input) DOUBLE PRECISION array, dimension |
|
* dimension is >= (CLEND-CLSTRT+1) |
* The eigenvalue APPROXIMATIONS of L D L^T in ascending order. |
* The eigenvalue APPROXIMATIONS of L D L^T in ascending order. |
* W( CLSTRT ) through W( CLEND ) form the cluster of relatively |
* W( CLSTRT ) through W( CLEND ) form the cluster of relatively |
* close eigenalues. |
* close eigenalues. |
* |
* |
* WGAP (input/output) DOUBLE PRECISION array, dimension >= (CLEND-CLSTRT+1) |
* WGAP (input/output) DOUBLE PRECISION array, dimension |
|
* dimension is >= (CLEND-CLSTRT+1) |
* The separation from the right neighbor eigenvalue in W. |
* The separation from the right neighbor eigenvalue in W. |
* |
* |
* WERR (input) DOUBLE PRECISION array, dimension >= (CLEND-CLSTRT+1) |
* WERR (input) DOUBLE PRECISION array, dimension |
|
* dimension is >= (CLEND-CLSTRT+1) |
* WERR contain the semiwidth of the uncertainty |
* WERR contain the semiwidth of the uncertainty |
* interval of the corresponding eigenvalue APPROXIMATION in W |
* interval of the corresponding eigenvalue APPROXIMATION in W |
* |
* |
* SPDIAM (input) estimate of the spectral diameter obtained from the |
* SPDIAM (input) DOUBLE PRECISION |
|
* estimate of the spectral diameter obtained from the |
* Gerschgorin intervals |
* Gerschgorin intervals |
* |
* |
* CLGAPL, CLGAPR (input) absolute gap on each end of the cluster. |
* CLGAPL (input) DOUBLE PRECISION |
|
* |
|
* CLGAPR (input) DOUBLE PRECISION |
|
* absolute gap on each end of the cluster. |
* Set by the calling routine to protect against shifts too close |
* Set by the calling routine to protect against shifts too close |
* to eigenvalues outside the cluster. |
* to eigenvalues outside the cluster. |
* |
* |
Line 83
|
Line 90
|
* WORK (workspace) DOUBLE PRECISION array, dimension (2*N) |
* WORK (workspace) DOUBLE PRECISION array, dimension (2*N) |
* Workspace. |
* Workspace. |
* |
* |
|
* INFO (output) INTEGER |
|
* Signals processing OK (=0) or failure (=1) |
|
* |
* Further Details |
* Further Details |
* =============== |
* =============== |
* |
* |