Systems Simulation and Controls using Activate.
Altair Activate software is an open & flexible tool for rapidly modeling and simulating products as multi-disciplinary systems in the form of 1D models (expressed as singnal-based or physical block diagrams), optionally coupled to 3D models.
The 'Linear Systems' series has been organized in 3 sections covering an introduction to linear systems, the transfer function, and the state space formulation.