Optimization is the search for a set of parameters that minimize a function. For example, you can use optimization to define an optimal set of parameters for the design of a specific application, such as the optimal parameters for designing a control mechanism for a system or the conditions that minimize the cost of a manufacturing process. Generally, optimization problems involve a set of possible solutions X and the objective function f(x), also known as the cost function. f(x) is the function of the variable or variables you want to minimize or maximize.