Chapter 2 The methods to describe a system a. The Nth-order differential equation model b. Signal-Flow graph Block diagram C. Transfer Function by Laplace Transform) d. The unit impulse response e The State-space Model TheoryThe methods to describe a system a. The Nth-order differential equation model b. Signal-Flow graph / Block diagram c. Transfer Function ( by Laplace Transform) d. The unit impulse response e. The State-space Model Chapter 2