Simple First Order System - FirstOrderSteady

The Modelica By Example target code is:

model FirstOrderSteady
  "First order equation with steady state initial condition"
  Real x "State variable";
initial equation
  der(x) = 0 "Initialize the system in steady state";
equation
  der(x) = 1-x "Drives value of x toward 1.0";
end FirstOrderSteady;

The exported Modelica code is:

model FirstOrderSteady
  Real x;
  Real y(start=0.0,fixed=true);
equation
  der(x)=1-x;
  y=der(x);
end FirstOrderSteady;

The SysPhS version as formulated here is quite different from the Modelica By Example version because: The SysPhS version gets around the lack of 'initial equation' here by using an additional y = der(x) and setting the 'start' for y.

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The next example FirstOrderExperiment is skipped because: