--- rpl/lapack/lapack/dstev.f 2010/01/26 15:22:45 1.1.1.1
+++ rpl/lapack/lapack/dstev.f 2014/01/27 09:28:27 1.12
@@ -1,9 +1,125 @@
+*> \brief DSTEV computes the eigenvalues and, optionally, the left and/or right eigenvectors for OTHER matrices
+*
+* =========== DOCUMENTATION ===========
+*
+* Online html documentation available at
+* http://www.netlib.org/lapack/explore-html/
+*
+*> \htmlonly
+*> Download DSTEV + dependencies
+*>
+*> [TGZ]
+*>
+*> [ZIP]
+*>
+*> [TXT]
+*> \endhtmlonly
+*
+* Definition:
+* ===========
+*
+* SUBROUTINE DSTEV( JOBZ, N, D, E, Z, LDZ, WORK, INFO )
+*
+* .. Scalar Arguments ..
+* CHARACTER JOBZ
+* INTEGER INFO, LDZ, N
+* ..
+* .. Array Arguments ..
+* DOUBLE PRECISION D( * ), E( * ), WORK( * ), Z( LDZ, * )
+* ..
+*
+*
+*> \par Purpose:
+* =============
+*>
+*> \verbatim
+*>
+*> DSTEV computes all eigenvalues and, optionally, eigenvectors of a
+*> real symmetric tridiagonal matrix A.
+*> \endverbatim
+*
+* Arguments:
+* ==========
+*
+*> \param[in] JOBZ
+*> \verbatim
+*> JOBZ is CHARACTER*1
+*> = 'N': Compute eigenvalues only;
+*> = 'V': Compute eigenvalues and eigenvectors.
+*> \endverbatim
+*>
+*> \param[in] N
+*> \verbatim
+*> N is INTEGER
+*> The order of the matrix. N >= 0.
+*> \endverbatim
+*>
+*> \param[in,out] D
+*> \verbatim
+*> D is DOUBLE PRECISION array, dimension (N)
+*> On entry, the n diagonal elements of the tridiagonal matrix
+*> A.
+*> On exit, if INFO = 0, the eigenvalues in ascending order.
+*> \endverbatim
+*>
+*> \param[in,out] E
+*> \verbatim
+*> E is DOUBLE PRECISION array, dimension (N-1)
+*> On entry, the (n-1) subdiagonal elements of the tridiagonal
+*> matrix A, stored in elements 1 to N-1 of E.
+*> On exit, the contents of E are destroyed.
+*> \endverbatim
+*>
+*> \param[out] Z
+*> \verbatim
+*> Z is DOUBLE PRECISION array, dimension (LDZ, N)
+*> If JOBZ = 'V', then if INFO = 0, Z contains the orthonormal
+*> eigenvectors of the matrix A, with the i-th column of Z
+*> holding the eigenvector associated with D(i).
+*> If JOBZ = 'N', then Z is not referenced.
+*> \endverbatim
+*>
+*> \param[in] LDZ
+*> \verbatim
+*> LDZ is INTEGER
+*> The leading dimension of the array Z. LDZ >= 1, and if
+*> JOBZ = 'V', LDZ >= max(1,N).
+*> \endverbatim
+*>
+*> \param[out] WORK
+*> \verbatim
+*> WORK is DOUBLE PRECISION array, dimension (max(1,2*N-2))
+*> If JOBZ = 'N', WORK is not referenced.
+*> \endverbatim
+*>
+*> \param[out] INFO
+*> \verbatim
+*> INFO is INTEGER
+*> = 0: successful exit
+*> < 0: if INFO = -i, the i-th argument had an illegal value
+*> > 0: if INFO = i, the algorithm failed to converge; i
+*> off-diagonal elements of E did not converge to zero.
+*> \endverbatim
+*
+* Authors:
+* ========
+*
+*> \author Univ. of Tennessee
+*> \author Univ. of California Berkeley
+*> \author Univ. of Colorado Denver
+*> \author NAG Ltd.
+*
+*> \date November 2011
+*
+*> \ingroup doubleOTHEReigen
+*
+* =====================================================================
SUBROUTINE DSTEV( JOBZ, N, D, E, Z, LDZ, WORK, INFO )
*
-* -- LAPACK driver routine (version 3.2) --
+* -- LAPACK driver routine (version 3.4.0) --
* -- LAPACK is a software package provided by Univ. of Tennessee, --
* -- Univ. of California Berkeley, Univ. of Colorado Denver and NAG Ltd..--
-* November 2006
+* November 2011
*
* .. Scalar Arguments ..
CHARACTER JOBZ
@@ -13,51 +129,6 @@
DOUBLE PRECISION D( * ), E( * ), WORK( * ), Z( LDZ, * )
* ..
*
-* Purpose
-* =======
-*
-* DSTEV computes all eigenvalues and, optionally, eigenvectors of a
-* real symmetric tridiagonal matrix A.
-*
-* Arguments
-* =========
-*
-* JOBZ (input) CHARACTER*1
-* = 'N': Compute eigenvalues only;
-* = 'V': Compute eigenvalues and eigenvectors.
-*
-* N (input) INTEGER
-* The order of the matrix. N >= 0.
-*
-* D (input/output) DOUBLE PRECISION array, dimension (N)
-* On entry, the n diagonal elements of the tridiagonal matrix
-* A.
-* On exit, if INFO = 0, the eigenvalues in ascending order.
-*
-* E (input/output) DOUBLE PRECISION array, dimension (N-1)
-* On entry, the (n-1) subdiagonal elements of the tridiagonal
-* matrix A, stored in elements 1 to N-1 of E.
-* On exit, the contents of E are destroyed.
-*
-* Z (output) DOUBLE PRECISION array, dimension (LDZ, N)
-* If JOBZ = 'V', then if INFO = 0, Z contains the orthonormal
-* eigenvectors of the matrix A, with the i-th column of Z
-* holding the eigenvector associated with D(i).
-* If JOBZ = 'N', then Z is not referenced.
-*
-* LDZ (input) INTEGER
-* The leading dimension of the array Z. LDZ >= 1, and if
-* JOBZ = 'V', LDZ >= max(1,N).
-*
-* WORK (workspace) DOUBLE PRECISION array, dimension (max(1,2*N-2))
-* If JOBZ = 'N', WORK is not referenced.
-*
-* INFO (output) INTEGER
-* = 0: successful exit
-* < 0: if INFO = -i, the i-th argument had an illegal value
-* > 0: if INFO = i, the algorithm failed to converge; i
-* off-diagonal elements of E did not converge to zero.
-*
* =====================================================================
*
* .. Parameters ..