Simulation is a technique used to model the behavior of real-world systems through computational methods. It allows researchers and engineers to analyze complex processes, predict outcomes, and optimize performance without the need for physical prototypes. This approach is widely applied in fields such as engineering, healthcare, and economics. By creating virtual environments, simulations enable users to experiment with different scenarios and variables. This can lead to valuable insights and informed decision-making. For instance, flight simulators are used to train pilots, providing a safe and controlled setting to practice various flight conditions.