Essentialily of Computer Simulation

You may want to understand why to do simulation? Is there any one way to perform the tasks? To converse these matters lets briefly discuss the cases wherein simulation is essential. There are several methods of modeling a system that do not engage simulation but that involve the solution of a closed-form system as a system of linear equations. Now let us not go into these matters, as they are not division of our current discussion.

Simulation is frequently essential in the subsequent cases:

1)   The model is very complicated with several variables and interacting elements;

2)   The highlighted variable's relationships are nonlinear;

3)   The model includes random variants;

4)   The model output is to be visual like in a 3-dimentional computer animation.