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diff --git a/octave_packages/fpl-1.2.0/FPL2dxappenddata.m b/octave_packages/fpl-1.2.0/FPL2dxappenddata.m
new file mode 100644
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+++ b/octave_packages/fpl-1.2.0/FPL2dxappenddata.m
@@ -0,0 +1,90 @@
+## Copyright (C) 2004-2008  Carlo de Falco, Massimiliano Culpo
+##
+##  This file is part of 
+##
+##                   FPL - Fem PLotting package for octave
+## 
+##  FPL 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 2 of the License, or
+##  (at your option) any later version.
+## 
+##  FPL 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 FPL; If not, see <http://www.gnu.org/licenses/>.
+##
+##
+##  AUTHORS:
+##  Carlo de Falco <cdf _AT_ users.sourceforge.net>
+##
+##  Culpo Massimiliano
+##  Bergische Universitaet Wuppertal
+##  Fachbereich C - Mathematik und Naturwissenschaften
+##  Arbeitsgruppe fuer Angewandte MathematD-42119 Wuppertal  Gaussstr. 20 
+##  D-42119 Wuppertal, Germany
+
+## -*- texinfo -*-
+##  @deftypefn {Function File} {} FPL2dxappenddata ( @var{filename},
+##  @var{p}, @var{t}, @var{u}, @var{attr_name}, @var{attr_rank},
+##  @var{attr_shape}, @var{endflie} )
+##
+##   Apends data to a file in DX form.
+##   Only one variable can be written to the file
+##   variable must be a scalar, vector or tensor of doubles   
+##   mesh data in the file must be consistent with this variable
+##
+##   Variable must be a scalar, vector or tensor of doubles   
+##
+## @itemize @minus
+##  @item @var{filename}= name of file to save (type string)
+##  @item @var{p}, @var{t} = mesh
+##  @item @var{u} = variable to save
+##  @item @var{attr_name}  = name of the variable (type string)
+##  @item @var{attr_rank}  = rank of variable data (0 for scalar, 1 for vector, etc.)
+##  @item @var{attr_shape} = number of components of variable data  (assumed 1 for scalar)
+##  @item @var{endfile} = 0 if you want to add other variables to the
+##  same file, 1 otherwise
+## @end itemize
+## @end deftypefn
+
+function FPL2dxappenddata(filename,p,t,u,attr_name,attr_rank,attr_shape,endfile)
+
+  p = p';
+  t = t';
+  t = t(:,1:3);
+
+  fid=fopen (filename,'a');
+  Nnodi = size(p,1);
+  Ntriangoli = size(t,1);
+
+  fprintf(fid,'\nattribute "element type" string "triangles"\nattribute "ref" string "positions"\n\n');
+
+  if ((attr_rank==0) & (min(size(u))==1))
+    fprintf(fid,'object "%s.data"\nclass array type double rank 0 items %d data follows',attr_name,Nnodi);
+	    fprintf(fid,'\n %1.7e',u);
+		  else
+		    fprintf(fid,'object "%s.data"\nclass array type double rank %d shape %d items %d data follows', ...
+			    attr_name,attr_rank,attr_shape,Nnodi);
+		    for i=1:Nnodi
+                    fprintf(fid,'\n');
+                    fprintf(fid,'    %1.7e',u(i,:));
+		    endfor
+  endif
+  fprintf(fid,['\nattribute "dep" string "positions"\n\n' ...
+               'object "%s" class field\n'...
+               'component "positions" value "pos"\n'...
+               'component "connections" value "con"\n'...
+               'component "data" value "%s.data"\n'],...
+          attr_name,attr_name);
+  
+  if(endfile)
+    fprintf(fid,'\nend\n');
+  endif
+  
+  fclose (fid);
+  
+endfunction
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