SRC/sorgl2.f(3)            Library Functions Manual            SRC/sorgl2.f(3)

NAME
       SRC/sorgl2.f

SYNOPSIS
   Functions/Subroutines
       subroutine sorgl2 (m, n, k, a, lda, tau, work, info)
           SORGL2

Function/Subroutine Documentation
   subroutine sorgl2 (integer m, integer n, integer k, real, dimension( lda, *
       ) a, integer lda, real, dimension( * ) tau, real, dimension( * ) work,
       integer info)
       SORGL2

       Purpose:


           !>
           !> SORGL2 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 SGELQF.
           !>

       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 REAL 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 SGELQF 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 REAL array, dimension (K)
           !>          TAU(i) must contain the scalar factor of the elementary
           !>          reflector H(i), as returned by SGELQF.
           !>

           WORK

           !>          WORK is REAL 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 sorgl2.f.

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

LAPACK                          Version 3.12.0                 SRC/sorgl2.f(3)