C. Internal function

This might be used in case a variable has also a spontaneous feedback on itself in certain areas independently from the other variables.

This internal function has first to be drawn in the PARTIAL SCENARIO with the tool CONNECT by clicking twice on the blue variable. Back in the tableau SIMULATION you may now click the button INTERNAL FEEDBACK in the tableau of the variable you have chosen.

In the opening scale the feedback of the variable on itself depending on its position (height) can be marked in the respective area of the scale by clicking on the vertical line and pulling with the pressed mouse key (the mouse arrow changes into a drawing pencil). The curve drawn will then be integrated in the algorithm of the simulation after clicking OK.

On the right side of the curve is an editor in which you may explain the reasons for the course of this function.

For special cases the button f(x)=... allows to enter a function directly as a mathematical function. This special is offered for very exceptional cases.