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authorjulie <julielangou@users.noreply.github.com>2011-10-06 06:53:11 +0000
committerjulie <julielangou@users.noreply.github.com>2011-10-06 06:53:11 +0000
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- SUBROUTINE DGBT02( TRANS, M, N, KL, KU, NRHS, A, LDA, X, LDX, B,
- $ LDB, RESID )
-*
-* -- LAPACK test routine (version 3.1) --
-* Univ. of Tennessee, Univ. of California Berkeley and NAG Ltd..
-* November 2006
-*
-* .. Scalar Arguments ..
- CHARACTER TRANS
- INTEGER KL, KU, LDA, LDB, LDX, M, N, NRHS
- DOUBLE PRECISION RESID
-* ..
-* .. Array Arguments ..
- DOUBLE PRECISION A( LDA, * ), B( LDB, * ), X( LDX, * )
-* ..
-*
+*> \brief \b DGBT02
+*
+* =========== DOCUMENTATION ===========
+*
+* Online html documentation available at
+* http://www.netlib.org/lapack/explore-html/
+*
+* Definition
+* ==========
+*
+* SUBROUTINE DGBT02( TRANS, M, N, KL, KU, NRHS, A, LDA, X, LDX, B,
+* LDB, RESID )
+*
+* .. Scalar Arguments ..
+* CHARACTER TRANS
+* INTEGER KL, KU, LDA, LDB, LDX, M, N, NRHS
+* DOUBLE PRECISION RESID
+* ..
+* .. Array Arguments ..
+* DOUBLE PRECISION A( LDA, * ), B( LDB, * ), X( LDX, * )
+* ..
+*
* Purpose
* =======
*
-* DGBT02 computes the residual for a solution of a banded system of
-* equations A*x = b or A'*x = b:
-* RESID = norm( B - A*X ) / ( norm(A) * norm(X) * EPS).
-* where EPS is the machine precision.
+*>\details \b Purpose:
+*>\verbatim
+*>
+*> DGBT02 computes the residual for a solution of a banded system of
+*> equations A*x = b or A'*x = b:
+*> RESID = norm( B - A*X ) / ( norm(A) * norm(X) * EPS).
+*> where EPS is the machine precision.
+*>
+*>\endverbatim
*
* Arguments
* =========
*
-* TRANS (input) CHARACTER*1
-* Specifies the form of the system of equations:
-* = 'N': A *x = b
-* = 'T': A'*x = b, where A' is the transpose of A
-* = 'C': A'*x = b, where A' is the transpose of A
-*
-* M (input) INTEGER
-* The number of rows of the matrix A. M >= 0.
-*
-* N (input) INTEGER
-* The number of columns of the matrix A. N >= 0.
-*
-* KL (input) INTEGER
-* The number of subdiagonals within the band of A. KL >= 0.
-*
-* KU (input) INTEGER
-* The number of superdiagonals within the band of A. KU >= 0.
-*
-* NRHS (input) INTEGER
-* The number of columns of B. NRHS >= 0.
-*
-* A (input) DOUBLE PRECISION array, dimension (LDA,N)
-* The original matrix A in band storage, stored in rows 1 to
-* KL+KU+1.
+*> \param[in] TRANS
+*> \verbatim
+*> TRANS is CHARACTER*1
+*> Specifies the form of the system of equations:
+*> = 'N': A *x = b
+*> = 'T': A'*x = b, where A' is the transpose of A
+*> = 'C': A'*x = b, where A' is the transpose of A
+*> \endverbatim
+*>
+*> \param[in] M
+*> \verbatim
+*> M is INTEGER
+*> The number of rows of the matrix A. M >= 0.
+*> \endverbatim
+*>
+*> \param[in] N
+*> \verbatim
+*> N is INTEGER
+*> The number of columns of the matrix A. N >= 0.
+*> \endverbatim
+*>
+*> \param[in] KL
+*> \verbatim
+*> KL is INTEGER
+*> The number of subdiagonals within the band of A. KL >= 0.
+*> \endverbatim
+*>
+*> \param[in] KU
+*> \verbatim
+*> KU is INTEGER
+*> The number of superdiagonals within the band of A. KU >= 0.
+*> \endverbatim
+*>
+*> \param[in] NRHS
+*> \verbatim
+*> NRHS is INTEGER
+*> The number of columns of B. NRHS >= 0.
+*> \endverbatim
+*>
+*> \param[in] A
+*> \verbatim
+*> A is DOUBLE PRECISION array, dimension (LDA,N)
+*> The original matrix A in band storage, stored in rows 1 to
+*> KL+KU+1.
+*> \endverbatim
+*>
+*> \param[in] LDA
+*> \verbatim
+*> LDA is INTEGER
+*> The leading dimension of the array A. LDA >= max(1,KL+KU+1).
+*> \endverbatim
+*>
+*> \param[in] X
+*> \verbatim
+*> X is DOUBLE PRECISION array, dimension (LDX,NRHS)
+*> The computed solution vectors for the system of linear
+*> equations.
+*> \endverbatim
+*>
+*> \param[in] LDX
+*> \verbatim
+*> LDX is INTEGER
+*> The leading dimension of the array X. If TRANS = 'N',
+*> LDX >= max(1,N); if TRANS = 'T' or 'C', LDX >= max(1,M).
+*> \endverbatim
+*>
+*> \param[in,out] B
+*> \verbatim
+*> B is DOUBLE PRECISION array, dimension (LDB,NRHS)
+*> On entry, the right hand side vectors for the system of
+*> linear equations.
+*> On exit, B is overwritten with the difference B - A*X.
+*> \endverbatim
+*>
+*> \param[in] LDB
+*> \verbatim
+*> LDB is INTEGER
+*> The leading dimension of the array B. IF TRANS = 'N',
+*> LDB >= max(1,M); if TRANS = 'T' or 'C', LDB >= max(1,N).
+*> \endverbatim
+*>
+*> \param[out] RESID
+*> \verbatim
+*> RESID is DOUBLE PRECISION
+*> The maximum over the number of right hand sides of
+*> norm(B - A*X) / ( norm(A) * norm(X) * EPS ).
+*> \endverbatim
+*>
+*
+* Authors
+* =======
*
-* LDA (input) INTEGER
-* The leading dimension of the array A. LDA >= max(1,KL+KU+1).
+*> \author Univ. of Tennessee
+*> \author Univ. of California Berkeley
+*> \author Univ. of Colorado Denver
+*> \author NAG Ltd.
*
-* X (input) DOUBLE PRECISION array, dimension (LDX,NRHS)
-* The computed solution vectors for the system of linear
-* equations.
+*> \date November 2011
*
-* LDX (input) INTEGER
-* The leading dimension of the array X. If TRANS = 'N',
-* LDX >= max(1,N); if TRANS = 'T' or 'C', LDX >= max(1,M).
+*> \ingroup double_lin
*
-* B (input/output) DOUBLE PRECISION array, dimension (LDB,NRHS)
-* On entry, the right hand side vectors for the system of
-* linear equations.
-* On exit, B is overwritten with the difference B - A*X.
+* =====================================================================
+ SUBROUTINE DGBT02( TRANS, M, N, KL, KU, NRHS, A, LDA, X, LDX, B,
+ $ LDB, RESID )
*
-* LDB (input) INTEGER
-* The leading dimension of the array B. IF TRANS = 'N',
-* LDB >= max(1,M); if TRANS = 'T' or 'C', LDB >= max(1,N).
+* -- LAPACK test routine (version 3.1) --
+* -- LAPACK is a software package provided by Univ. of Tennessee, --
+* -- Univ. of California Berkeley, Univ. of Colorado Denver and NAG Ltd..--
+* November 2011
*
-* RESID (output) DOUBLE PRECISION
-* The maximum over the number of right hand sides of
-* norm(B - A*X) / ( norm(A) * norm(X) * EPS ).
+* .. Scalar Arguments ..
+ CHARACTER TRANS
+ INTEGER KL, KU, LDA, LDB, LDX, M, N, NRHS
+ DOUBLE PRECISION RESID
+* ..
+* .. Array Arguments ..
+ DOUBLE PRECISION A( LDA, * ), B( LDB, * ), X( LDX, * )
+* ..
*
* =====================================================================
*