#*-------------------------------------------------------------------
* EMSO Model Library (EML) Copyright (C) 2004 - 2007 ALSOC.
*
* This LIBRARY is free software; you can distribute it and/or modify
* it under the therms of the ALSOC FREE LICENSE as available at
* http://www.enq.ufrgs.br/alsoc.
*
* EMSO is distributed under the terms of the ALSOC LICENSE as
* available at http://www.enq.ufrgs.br/alsoc.
*-----------------------------------------------------------------------
* Author: Jonathan Ospino P.
* $Id: SumSubtract.mso  2012$
*---------------------------------------------------------------------*#

using "types";

Model SumSub

ATTRIBUTES
Pallete=true;
Icon="icon/SumSubtract";
Info="== Sum/Subtract block ==

	  It takes the input variables and computes the sum or difference of them.
	  The resulting value is assigned to the output variable";

PARAMETERS
Select_operation as Switcher(Valid=["Sum","Subtraction"],Default="Sum");

VARIABLES
in In1 as Real(Brief="First term to be added",PosX=0.5,PosY=0);
in In2 as Real(Brief="Second term to be added",PosX=0.5,PosY=1);
out Out as Real(Brief="Result is (In1+In2) or (In1-In2)",Protected=true,PosX=1,PosY=0.5);

EQUATIONS
switch Select_operation
	case "Sum":
	Out=In1+In2;
	case "Subtraction":
	Out=In1-In2;
end

end