In Modelica, I have a variable x which is dependent on (a, b,c). For a given simulation time, its plot (x,time) looks smooth and continuous. I would like to have the slope of this curve without having to explicitly differentiate der(x) because I get errors regarding the partial derivatives with respect to a, b or c. Is this possible? In other words I want the slope of the final output, without having to differentiate what it is behind it.
Modelica.Blocks.Continuous.Derivative x_dot(start=1) This provides an approximation of the derivative. I gave the x as an input and got x_dot.y as the derivative with no problems.