SRC/slarf1f.f(3)           Library Functions Manual           SRC/slarf1f.f(3)

NAME
       SRC/slarf1f.f

SYNOPSIS
   Functions/Subroutines
       subroutine slarf1f (side, m, n, v, incv, tau, c, ldc, work)
           SLARF1F applies an elementary reflector to a general rectangular

Function/Subroutine Documentation
   subroutine slarf1f (character side, integer m, integer n, real, dimension(
       * ) v, integer incv, real tau, real, dimension( ldc, * ) c, integer
       ldc, real, dimension( * ) work)
       SLARF1F applies an elementary reflector to a general rectangular

       Purpose:


           !>
           !> SLARF1F applies a real elementary reflector H to a real m by n matrix
           !> C, from either the left or the right. H is represented in the form
           !>
           !>       H = I - tau * v * v**T
           !>
           !> where tau is a real scalar and v is a real vector assuming v(1) = 1.
           !>
           !> If tau = 0, then H is taken to be the unit matrix.
           !>

       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 REAL 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 REAL
           !>          The value tau in the representation of H.
           !>

           C

           !>          C is REAL 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 REAL 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 124 of file slarf1f.f.

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

LAPACK                          Version 3.12.0                SRC/slarf1f.f(3)