I built a simulink model in which I was obliged to use the derivative block many times. But each time I run the simulation it stops and I have the error message below:
An error occurred while running the simulation and the simulation was terminated
Error in 'board_with_derivatives/calculation of Y_0_dd /Interpreted MATLAB Function'. Evaluation of expression resulted in an invalid output. Only finite double vector or matrix outputs are supported
Also I used the unit delay block many times in order to break the algebraic loops.
I have attached to this question the simulink model and the m-file containing the necessary parameters for running the simulation.
Any help is appreciated.
Thank you very much in advance.