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SIMPLEX METHOD

Simplex method is an iterative procedure that allows to improve the solution at each step. This procedure is finished when it isn't possible to improve the solution. Simplex method is based on the following property: if objective function, F, doesn't take the max value in the A vertex, then there is an edge starting at A, along which the value of the function grows. You should take care about Simplex method only works with "≤" type inequality and independent coefficients higher or equal to zero, and you will have to standardize the restrictions for the algorithm. Case after this procedure "≥" o "=" type restrictions appear (or not modified) you should try other ways, being Two-Phase Simplex method the best choice. Model of the problem is prepared to adapt it to the Simplex Method This is the standard way of the model: Objective function: c 1 ·x 1  + c 2 ·x 2  + ... + c n ·x n Subject to: a 11 ·x 1 ...
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Operational Research

What is Optimization? Optimization problem: Maximizing or minimizing some function relative to some set, often representing a range of choices available in a certain situation. The function allows comparison of the different choices for determining which might be “best.” Common applications: Minimal cost, maximal profit, best approximation, optimal design, optimal management or control, variational principles. Definitions of Operational Research ·          “OR is concerned with scientifically deciding how to best design and operate man-machine system usually requiring the allocation of scare resources.” – Operations Research Society, America ·          “OR is essentially a collection of mathematical techniques and tools which in conjunction with system approach, are applied to solve practical decision problems of an economic or engineering nature’’. – Daellenbach and George ·  ...
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E-Commerce (Question Bank)

                                                E-Commerce Question Bank What is the difference between e-commerce and  e-business portal? Discuss the seven unique features of E-commerce technology? Discuss E-commerce I and II? Contract their pros and cons? Discuss evolution of Internet in detail? Discuss C2C model in detail? What do you understand by  EDI? Explain working of EDI with example? How can EDI be used by a Manufacturing company Courier Company Discuss potential limitations of e-commerce in detail? What are the basic components of  EDI? How does it work? What are the benefits of the EDI? What are possible challenges? What is i...
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Optimization Theory (Question bank)

                                                         Question Bank      Optimization Theory What is operations research? Explain the scope of OR. List the phases of OR and explain them. Define the following:             a. Feasible region.             b. Feasible solution.             c. Optimal solution.                   d. Unbounded solution. e.        Artificial variable. What is the difference between feasible solution and basic feas...
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