Operation Research is more than just mathematics The effective of this change is known as feasible region analysis Most prominent Operation Research technique is Linear Programming Linear programming determines the way to achieve the best outcome in a given mathematical model and given some bist of requirements represented as non-linear equations EO Some mathematical model may be so complex that it is impossible to solve them by any of the available optimization algorithms. In such cases, it may be necessary to abandon the search for the optimal solution and simply seek a good solution using heuristic or thumb of rule O