ABSTRACT
From the perspective of how the model changes state in time, computational models can be divided into two general categories:
1. Continuous models
2. Discrete-event models
A continuous model is one in which the changes of state in the model occur continuously with time. Often the state variables in the model are represented
in a boiler as a power plant can be considered a continuous model because the state variable that represents the temperature of the boiler is implemented as a continuous function of time. These types of models are usually modeled as a set of differential equations.
