To have the world be integrated   Martin Luther King Jr. had a dream that everyone would be free and have equal rights and that one day people of different races wouâ¦ld all be holding hands and walking side by side.
Simulation is the imitation of the operation of a real-world process or system over time. The act of simulating something first requires that a model be developed; this model represents the key characteristics or behaviors/ functions of the selected physical or abstract system or process.
mathematical description of an entity or state of affairs. This deï¬nition suggests that modeling is an activity, a cognitive activity in. which we think about and make models to describe how devices or objects. of interest behave. There are many ways in which devices and behaviors can be described. We can use words, drawings or sketches, physical models, computer pro-. grams, or mathematical formulas. In other words, the modeling activity. can be done in several languages, often simultaneously.