41. :You have the cost function in terms of the percentage of the pollution you want to remove. 42. Usually three cost functions were used in QMC optimization energy, variance or a linear combination of them. 43. For instance, cost function or the set in which the solution is sought can be not convex. 44. This idea is also known as a CPU cost function , client puzzle, computational puzzle or CPU pricing function. 45. On the basis of the cost function the determination of the optimal inventory level is a minimization problem. 46. Generally there are two parts to a cost function , the fixed costs and the variable costs involved in production. 47. "That's a very high-cost function . 48. This specification satisfies homogeneity of order 1 in prices, and is a second order approximation of any cost function . 49. The RLS adaptive is an algorithm which finds the filter coefficients recursively to minimize the weighted least squares cost function . 50. A generalization of the Bertrand model is the Bertrand Edgeworth model that allows for capacity constraints and more general cost functions .