[BACK]Return to zgelqt3.f CVS log [TXT] [DIR] Up to [local] / rpl / lapack / lapack

Diff for /rpl/lapack/lapack/zgelqt3.f between versions 1.1 and 1.5

version 1.1, 2017/06/17 11:02:52 version 1.5, 2023/08/07 08:39:17
Line 6 Line 6
 *            http://www.netlib.org/lapack/explore-html/  *            http://www.netlib.org/lapack/explore-html/
 *  *
 *> \htmlonly  *> \htmlonly
 *> Download DGEQRT3 + dependencies  *> Download ZGELQT3 + dependencies
 *> <a href="http://www.netlib.org/cgi-bin/netlibfiles.tgz?format=tgz&filename=/lapack/lapack_routine/zgelqt3.f">  *> <a href="http://www.netlib.org/cgi-bin/netlibfiles.tgz?format=tgz&filename=/lapack/lapack_routine/zgelqt3.f">
 *> [TGZ]</a>  *> [TGZ]</a>
 *> <a href="http://www.netlib.org/cgi-bin/netlibfiles.zip?format=zip&filename=/lapack/lapack_routine/zgelqt3.f">  *> <a href="http://www.netlib.org/cgi-bin/netlibfiles.zip?format=zip&filename=/lapack/lapack_routine/zgelqt3.f">
Line 33 Line 33
 *>  *>
 *> \verbatim  *> \verbatim
 *>  *>
 *> DGELQT3 recursively computes a LQ factorization of a complex M-by-N  *> ZGELQT3 recursively computes a LQ factorization of a complex M-by-N
 *> matrix A, using the compact WY representation of Q.  *> matrix A, using the compact WY representation of Q.
 *>  *>
 *> Based on the algorithm of Elmroth and Gustavson,  *> Based on the algorithm of Elmroth and Gustavson,
Line 58 Line 58
 *> \param[in,out] A  *> \param[in,out] A
 *> \verbatim  *> \verbatim
 *>          A is COMPLEX*16 array, dimension (LDA,N)  *>          A is COMPLEX*16 array, dimension (LDA,N)
 *>          On entry, the real M-by-N matrix A.  On exit, the elements on and  *>          On entry, the complex M-by-N matrix A.  On exit, the elements on and
 *>          below the diagonal contain the N-by-N lower triangular matrix L; the  *>          below the diagonal contain the N-by-N lower triangular matrix L; the
 *>          elements above the diagonal are the rows of V.  See below for  *>          elements above the diagonal are the rows of V.  See below for
 *>          further details.  *>          further details.
Line 100 Line 100
 *> \author Univ. of Colorado Denver  *> \author Univ. of Colorado Denver
 *> \author NAG Ltd.  *> \author NAG Ltd.
 *  *
 *> \date December 2016  
 *  
 *> \ingroup doubleGEcomputational  *> \ingroup doubleGEcomputational
 *  *
 *> \par Further Details:  *> \par Further Details:
Line 109 Line 107
 *>  *>
 *> \verbatim  *> \verbatim
 *>  *>
 *>  The matrix V stores the elementary reflectors H(i) in the i-th column  *>  The matrix V stores the elementary reflectors H(i) in the i-th row
 *>  below the diagonal. For example, if M=5 and N=3, the matrix V is  *>  above the diagonal. For example, if M=5 and N=3, the matrix V is
 *>  *>
 *>               V = (  1  v1 v1 v1 v1 )  *>               V = (  1  v1 v1 v1 v1 )
 *>                   (     1  v2 v2 v2 )  *>                   (     1  v2 v2 v2 )
Line 131 Line 129
 *  =====================================================================  *  =====================================================================
       RECURSIVE SUBROUTINE ZGELQT3( M, N, A, LDA, T, LDT, INFO )        RECURSIVE SUBROUTINE ZGELQT3( M, N, A, LDA, T, LDT, INFO )
 *  *
 *  -- LAPACK computational routine (version 3.7.0) --  *  -- LAPACK computational routine --
 *  -- 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  
 *  *
 *     .. Scalar Arguments ..  *     .. Scalar Arguments ..
       INTEGER   INFO, LDA, M, N, LDT        INTEGER   INFO, LDA, M, N, LDT
Line 151 Line 148
       PARAMETER ( ZERO = (0.0D+00,0.0D+00))        PARAMETER ( ZERO = (0.0D+00,0.0D+00))
 *     ..  *     ..
 *     .. Local Scalars ..  *     .. Local Scalars ..
       INTEGER   I, I1, J, J1, M1, M2, N1, N2, IINFO        INTEGER   I, I1, J, J1, M1, M2, IINFO
 *     ..  *     ..
 *     .. External Subroutines ..  *     .. External Subroutines ..
       EXTERNAL  ZLARFG, ZTRMM, ZGEMM, XERBLA        EXTERNAL  ZLARFG, ZTRMM, ZGEMM, XERBLA
Line 175 Line 172
 *  *
       IF( M.EQ.1 ) THEN        IF( M.EQ.1 ) THEN
 *  *
 *        Compute Householder transform when N=1  *        Compute Householder transform when M=1
 *  *
          CALL ZLARFG( N, A, A( 1, MIN( 2, N ) ), LDA, T )           CALL ZLARFG( N, A, A( 1, MIN( 2, N ) ), LDA, T )
          T(1,1)=CONJG(T(1,1))           T(1,1)=CONJG(T(1,1))
Removed from v.1.1  
changed lines
  Added in v.1.5

CVSweb interface <joel.bertrand@systella.fr>