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+## Copyright (C) 1995, 1996, 1997, 1998, 2000, 2002, 2004, 2005, 2006,
+##               2007 Kurt Hornik
+##
+## 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} {} dmult (@var{a}, @var{b})
+## This function has been deprecated. Use the direct syntax @code{diag(A)*B}
+## which is more readable and now also more efficient.
+## @end deftypefn
+
+## Author: KH <Kurt.Hornik@wu-wien.ac.at>
+## Description: Rescale the rows of a matrix
+
+function M = dmult (a, B)
+
+  persistent warned = false;
+  if (! warned)
+    warned = true;
+    warning ("Octave:deprecated-function",
+             "dmult is obsolete and will be removed from a future version of Octave; please use the straightforward (and now efficient) syntax ""diag(A)*B"".");
+  endif
+
+  if (nargin != 2)
+    print_usage ();
+  endif
+ if (! isvector (a))
+    error ("dmult: a must be a vector of length rows (B)");
+  endif
+  a = a(:);
+  sb = size (B);
+  sb(1) = 1;
+  M = repmat (a(:), sb) .* B;
+endfunction