SRC/clarf1l.f(3)           Library Functions Manual           SRC/clarf1l.f(3)

NAME
       SRC/clarf1l.f

SYNOPSIS
   Functions/Subroutines
       subroutine clarf1l (side, m, n, v, incv, tau, c, ldc, work)
           CLARF1L applies an elementary reflector to a general rectangular

Function/Subroutine Documentation
   subroutine clarf1l (character side, integer m, integer n, complex,
       dimension( * ) v, integer incv, complex tau, complex, dimension( ldc, *
       ) c, integer ldc, complex, dimension( * ) work)
       CLARF1L applies an elementary reflector to a general rectangular

       Purpose:


           !>
           !> CLARF1L applies a complex elementary reflector H to a complex m by n matrix
           !> C, from either the left or the right. H is represented in the form
           !>
           !>       H = I - tau * v * v**H
           !>
           !> where tau is a real scalar and v is a real vector assuming v(lastv) = 1,
           !> where lastv is the last non-zero element.
           !>
           !> If tau = 0, then H is taken to be the unit matrix.
           !>
           !> To apply H**H (the conjugate transpose of H), supply conjg(tau) instead
           !> tau.
           !>

       Parameters
           SIDE

           !>          SIDE is CHARACTER*1
           !>          = 'L': form  H * C
           !>          = 'R': form  C * H
           !>

           M

           !>          M is INTEGER
           !>          The number of rows of the matrix C.
           !>

           N

           !>          N is INTEGER
           !>          The number of columns of the matrix C.
           !>

           V

           !>          V is COMPLEX array, dimension
           !>                     (1 + (M-1)*abs(INCV)) if SIDE = 'L'
           !>                  or (1 + (N-1)*abs(INCV)) if SIDE = 'R'
           !>          The vector v in the representation of H. V is not used if
           !>          TAU = 0.
           !>

           INCV

           !>          INCV is INTEGER
           !>          The increment between elements of v. INCV > 0.
           !>

           TAU

           !>          TAU is COMPLEX
           !>          The value tau in the representation of H.
           !>

           C

           !>          C is COMPLEX array, dimension (LDC,N)
           !>          On entry, the m by n matrix C.
           !>          On exit, C is overwritten by the matrix H * C if SIDE = 'L',
           !>          or C * H if SIDE = 'R'.
           !>

           LDC

           !>          LDC is INTEGER
           !>          The leading dimension of the array C. LDC >= max(1,M).
           !>

           WORK

           !>          WORK is COMPLEX array, dimension
           !>                         (N) if SIDE = 'L'
           !>                      or (M) if SIDE = 'R'
           !>

       Author
           Univ. of Tennessee


           Univ. of California Berkeley


           Univ. of Colorado Denver


           NAG Ltd.

       Definition at line 128 of file clarf1l.f.

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

LAPACK                          Version 3.12.0                SRC/clarf1l.f(3)