Figure 6.5: Modes for a second-order system with real eigenvalues

Chapter	Linear Systems
Figure number	6.5
Figure title	Figure 6.5: The notion of modes for a second-order system with real eigenvalues.
GitHub URL	https://github.com/murrayrm/fbs2e-python/blob/main/figure-6.5-springmass modes.py
Requires	python-control, springmass.py

Figure 5.1: Response of the damped oscillator to the initial condition x0 = (1, 0). The solution is unique for the given initial conditions and consists of an oscillatory solution for each state, with an exponentially decaying magnitude.