--- rpl/lapack/lapack/dlagts.f 2011/11/21 22:19:31 1.10
+++ rpl/lapack/lapack/dlagts.f 2023/08/07 08:38:54 1.20
@@ -1,25 +1,25 @@
-*> \brief \b DLAGTS
+*> \brief \b DLAGTS solves the system of equations (T-λI)x = y or (T-λI)Tx = y,where T is a general tridiagonal matrix and λ a scalar, using the LU factorization computed by slagtf.
*
* =========== DOCUMENTATION ===========
*
-* Online html documentation available at
-* http://www.netlib.org/lapack/explore-html/
+* Online html documentation available at
+* http://www.netlib.org/lapack/explore-html/
*
*> \htmlonly
-*> Download DLAGTS + dependencies
-*>
-*> [TGZ]
-*>
-*> [ZIP]
-*>
+*> Download DLAGTS + dependencies
+*>
+*> [TGZ]
+*>
+*> [ZIP]
+*>
*> [TXT]
-*> \endhtmlonly
+*> \endhtmlonly
*
* Definition:
* ===========
*
* SUBROUTINE DLAGTS( JOB, N, A, B, C, D, IN, Y, TOL, INFO )
-*
+*
* .. Scalar Arguments ..
* INTEGER INFO, JOB, N
* DOUBLE PRECISION TOL
@@ -28,7 +28,7 @@
* INTEGER IN( * )
* DOUBLE PRECISION A( * ), B( * ), C( * ), D( * ), Y( * )
* ..
-*
+*
*
*> \par Purpose:
* =============
@@ -122,12 +122,12 @@
*> \param[in,out] TOL
*> \verbatim
*> TOL is DOUBLE PRECISION
-*> On entry, with JOB .lt. 0, TOL should be the minimum
+*> On entry, with JOB < 0, TOL should be the minimum
*> perturbation to be made to very small diagonal elements of U.
*> TOL should normally be chosen as about eps*norm(U), where eps
*> is the relative machine precision, but if TOL is supplied as
*> non-positive, then it is reset to eps*max( abs( u(i,j) ) ).
-*> If JOB .gt. 0 then TOL is not referenced.
+*> If JOB > 0 then TOL is not referenced.
*>
*> On exit, TOL is changed as described above, only if TOL is
*> non-positive on entry. Otherwise TOL is unchanged.
@@ -136,35 +136,32 @@
*> \param[out] INFO
*> \verbatim
*> INFO is INTEGER
-*> = 0 : successful exit
-*> .lt. 0: if INFO = -i, the i-th argument had an illegal value
-*> .gt. 0: overflow would occur when computing the INFO(th)
-*> element of the solution vector x. This can only occur
-*> when JOB is supplied as positive and either means
-*> that a diagonal element of U is very small, or that
-*> the elements of the right-hand side vector y are very
-*> large.
+*> = 0: successful exit
+*> < 0: if INFO = -i, the i-th argument had an illegal value
+*> > 0: overflow would occur when computing the INFO(th)
+*> element of the solution vector x. This can only occur
+*> when JOB is supplied as positive and either means
+*> that a diagonal element of U is very small, or that
+*> the elements of the right-hand side vector y are very
+*> large.
*> \endverbatim
*
* Authors:
* ========
*
-*> \author Univ. of Tennessee
-*> \author Univ. of California Berkeley
-*> \author Univ. of Colorado Denver
-*> \author NAG Ltd.
-*
-*> \date November 2011
+*> \author Univ. of Tennessee
+*> \author Univ. of California Berkeley
+*> \author Univ. of Colorado Denver
+*> \author NAG Ltd.
*
-*> \ingroup auxOTHERauxiliary
+*> \ingroup OTHERauxiliary
*
* =====================================================================
SUBROUTINE DLAGTS( JOB, N, A, B, C, D, IN, Y, TOL, INFO )
*
-* -- LAPACK auxiliary routine (version 3.4.0) --
+* -- LAPACK auxiliary routine --
* -- LAPACK is a software package provided by Univ. of Tennessee, --
* -- Univ. of California Berkeley, Univ. of Colorado Denver and NAG Ltd..--
-* November 2011
*
* .. Scalar Arguments ..
INTEGER INFO, JOB, N