version 1.4, 2017/06/17 11:06:38
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version 1.7, 2020/05/21 21:46:02
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*> The right eigenvector x and the left eigenvector y of T corresponding |
*> The right eigenvector x and the left eigenvector y of T corresponding |
*> to an eigenvalue w are defined by: |
*> to an eigenvalue w are defined by: |
*> |
*> |
*> T*x = w*x, (y**H)*T = w*(y**H) |
*> T*x = w*x, (y**T)*T = w*(y**T) |
*> |
*> |
*> where y**H denotes the conjugate transpose of y. |
*> where y**T denotes the transpose of the vector y. |
*> The eigenvalues are not input to this routine, but are read directly |
*> The eigenvalues are not input to this routine, but are read directly |
*> from the diagonal blocks of T. |
*> from the diagonal blocks of T. |
*> |
*> |
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*> \author Univ. of Colorado Denver |
*> \author Univ. of Colorado Denver |
*> \author NAG Ltd. |
*> \author NAG Ltd. |
* |
* |
*> \date December 2016 |
*> \date November 2017 |
* |
* |
* @precisions fortran d -> s |
* @precisions fortran d -> s |
* |
* |
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$ VR, LDVR, MM, M, WORK, LWORK, INFO ) |
$ VR, LDVR, MM, M, WORK, LWORK, INFO ) |
IMPLICIT NONE |
IMPLICIT NONE |
* |
* |
* -- LAPACK computational routine (version 3.7.0) -- |
* -- LAPACK computational routine (version 3.8.0) -- |
* -- 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..-- |
* December 2016 |
* November 2017 |
* |
* |
* .. Scalar Arguments .. |
* .. Scalar Arguments .. |
CHARACTER HOWMNY, SIDE |
CHARACTER HOWMNY, SIDE |
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* .. |
* .. |
* .. External Subroutines .. |
* .. External Subroutines .. |
EXTERNAL DAXPY, DCOPY, DGEMV, DLALN2, DSCAL, XERBLA, |
EXTERNAL DAXPY, DCOPY, DGEMV, DLALN2, DSCAL, XERBLA, |
$ DGEMM, DLASET, DLABAD |
$ DGEMM, DLASET, DLABAD, DLACPY |
* .. |
* .. |
* .. Intrinsic Functions .. |
* .. Intrinsic Functions .. |
INTRINSIC ABS, MAX, SQRT |
INTRINSIC ABS, MAX, SQRT |