ADDED   mttroot/mtt/lib/comp/simple/zero_eqn.m
Index: mttroot/mtt/lib/comp/simple/zero_eqn.m
==================================================================
--- /dev/null
+++ mttroot/mtt/lib/comp/simple/zero_eqn.m
@@ -0,0 +1,29 @@
+function structure =  zero_eqn(name, bond_number,bonds,direction,cr,args, ...
+    structure,eqnfile);
+% zero_eqn - equations for zero junctions
+% 
+%     %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 
+%     %%%%% Model Transformation Tools %%%%%
+%     %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+% 
+% Matlab function  zero_eqn
+% zero_eqn(name, bond_number,bonds,direction,cr,args, structure,eqnfile);
+
+% %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+% %% Version control history
+% %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+% %% $Id$
+% %% $Log$
+% %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+
+
+if nargin<7
+  eqnfile = 'stdout';
+end;
+
+
+juneqn(name, bond_number,bonds,direction,cr,args,1,eqnfile)
+
+
+
+