Doc fixes. * 2]$$. => 2].$$ * @var{extrapval} => @var{extrapval}. * call helloworld.oct => called @file{helloworld.oct} * @itemize => @table @code * shows. => shows: * save => @code{save} * @ref{Breakpoints} => @pxref{Breakpoints} * add @noindent following example * which is computed => and compute it * clarify wording * remove comma * good => well * set => number * by writing => with the command * has the option of directly calling => can call * [-like-] {+of the right size,+} * solvers => routines * handle => test for * add introductory section * add following * {+the+} [0..bitmax] => [0,bitmax] * of the => with * number => value * add usual * Besides when doing comparisons, logical => Logical {+also+} * array comparison => array, comparisons * param => parameter * works very similar => is similar * strings, => strings * most simple => simplest * easier => more easily * like => as * called => called, * clarify wording * you should simply type => use * clarify wording * means => way * equally => also * [-way much-] {+way+} * add with mean value parameter given by the first argument, @var{l} * add Functions described as @dfn{mapping functions} apply the given operation to each element when given a matrix argument. * in this brief introduction => here * It is worth noticing => Note * add following * means => ways

## Copyright (C) 1996, 1997, 1998, 2000, 2002, 2004, 2005, 2006, 2007
##               A. S. Hodel
##
## This file is part of Octave.
##
## Octave is free software; you can redistribute it and/or modify it
## under the terms of the GNU General Public License as published by
## the Free Software Foundation; either version 3 of the License, or (at
## your option) any later version.
##
## Octave is distributed in the hope that it will be useful, but
## WITHOUT ANY WARRANTY; without even the implied warranty of
## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
## General Public License for more details.
##
## You should have received a copy of the GNU General Public License
## along with Octave; see the file COPYING.  If not, see
## <http://www.gnu.org/licenses/>.

## -*- texinfo -*-
## @deftypefn {Function File} {} is_duplicate_entry (@var{x})
## Return non-zero if any entries in @var{x} are duplicates of one
## another.
## @end deftypefn

## Author: A. S. Hodel <scotte@eng.auburn.edu>

function retval = is_duplicate_entry (x)

  if (nargin == 1)
    if (ismatrix (x))
      lx = numel (x);
      lx1 = lx-1;
      x = sort (reshape (x, 1, lx));
      dx = x(1:lx1) - x(2:lx);
      retval = sum (dx == 0);
    else
      error ("is_duplicate_entry: expecting matrix argument");
    endif
  else
    print_usage ();
  endif

endfunction