Cartpole with soft walls: Example IV.A in this paper using the controller computed in the paper (code here)
Acrobot with soft joints: Example IV.C in this paper using the controller computed in the paper (code here)
Cartpole with soft walls: Example IV.A in this paper using the controller computed in the paper (code here)
Acrobot with soft joints: Example IV.C in this paper using the controller computed in the paper (code here)