1. Determine the equations for each system component.
2. Choose a model for representing the system (e.g., block diagram).
3. Formulate the system model by appropriately connected the components.
4. Determine the system characteristics.
The direct solution of the system differential equation may be employed to find the total response or its parts, as well as the steady-state response and the transient response.
In the study of systems and differential equations which describe them, a particular family of functions (signals), the singularityfunctions, is used. These functions represent idealizations of physical phenomena and allow us to obtain simple representations of