Duality in Linear Programming

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Duality in Linear Programming

Every LPP (called primal) is associated with another LPP (called its dual). The original problem is then called primal problem while the other is called its Dual problem

The importance of duality concept is due to two main reasons

1. If the primal contains a large number of constraints and a small number of variables, the labour of computation can be considerably reduced by converting it into the dual problem and then solving it.

2. The interpretation of the dual variables from the cost or economic point of view, proves extremely useful in making the future decisions in the activities being programmed

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REFERENCES:

1. Operations Research: Theory and Applications - Sharma J. K, 4/e , Macmilan, 2010

2. Operations Research - Vohra N. D, 4/e, TMH, 2010.

3. Operations Research – Kalavathy S, 3/e, Vikas Publishing House.

4. Operations Research – Anand Sharma, HPH.

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