SRC/dorgl2.f(3)            Library Functions Manual            SRC/dorgl2.f(3)

NAME
       SRC/dorgl2.f

SYNOPSIS
   Functions/Subroutines
       subroutine dorgl2 (m, n, k, a, lda, tau, work, info)
           DORGL2

Function/Subroutine Documentation
   subroutine dorgl2 (integer m, integer n, integer k, double precision,
       dimension( lda, * ) a, integer lda, double precision, dimension( * )
       tau, double precision, dimension( * ) work, integer info)
       DORGL2

       Purpose:


           !>
           !> DORGL2 generates an m by n real matrix Q with orthonormal rows,
           !> which is defined as the first m rows of a product of k elementary
           !> reflectors of order n
           !>
           !>       Q  =  H(k) . . . H(2) H(1)
           !>
           !> as returned by DGELQF.
           !>

       Parameters
           M

           !>          M is INTEGER
           !>          The number of rows of the matrix Q. M >= 0.
           !>

           N

           !>          N is INTEGER
           !>          The number of columns of the matrix Q. N >= M.
           !>

           K

           !>          K is INTEGER
           !>          The number of elementary reflectors whose product defines the
           !>          matrix Q. M >= K >= 0.
           !>

           A

           !>          A is DOUBLE PRECISION array, dimension (LDA,N)
           !>          On entry, the i-th row must contain the vector which defines
           !>          the elementary reflector H(i), for i = 1,2,...,k, as returned
           !>          by DGELQF in the first k rows of its array argument A.
           !>          On exit, the m-by-n matrix Q.
           !>

           LDA

           !>          LDA is INTEGER
           !>          The first dimension of the array A. LDA >= max(1,M).
           !>

           TAU

           !>          TAU is DOUBLE PRECISION array, dimension (K)
           !>          TAU(i) must contain the scalar factor of the elementary
           !>          reflector H(i), as returned by DGELQF.
           !>

           WORK

           !>          WORK is DOUBLE PRECISION array, dimension (M)
           !>

           INFO

           !>          INFO is INTEGER
           !>          = 0: successful exit
           !>          < 0: if INFO = -i, the i-th argument has an illegal value
           !>

       Author
           Univ. of Tennessee


           Univ. of California Berkeley


           Univ. of Colorado Denver


           NAG Ltd.

       Definition at line 112 of file dorgl2.f.

Author
       Generated automatically by Doxygen for LAPACK from the source code.

LAPACK                          Version 3.12.0                 SRC/dorgl2.f(3)