# Copyright (c) P.J.Gawthrop, 1991, 1994.

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## Version control history
###############################################################
## $Id$
## $Log$
## Revision 1.4  2005/03/21 11:44:06  gawthrop
## Avoid error messages when no inputs or no outputs or no states
##
## Revision 1.3  1998/07/27 20:25:36  peterg
## *** empty log message ***
##
# Revision 1.2  1996/08/25  09:53:35  peter
# Error handling added.
#
## Revision 1.1  1996/08/18 20:03:51  peter

  IF MTTNz>0 THEN 
     FOR j := 1:MTTNz DO
      MTTE(j+MTTNx, j+MTTNx) := 1;

% Find MTTA : the A matrix

% First row partition: x
IF MTTNx>0 THEN 
IF MTTN>0 THEN 
  BEGIN
  matrix MTTA(MTTN,MTTN);
  FOR j := 1:MTTNx DO
    BEGIN
    xj := MTTX(j,1);
    FOR i := 1:MTTNx DO
      MTTA(i,j) := df(MTTdX(i,1), xj, 1);