OPL User Guide: Analyse the value of the dual variables
Write the dual of a linear program
Calculate the units of the dual variables
Give an economical interpretation of the dual program and of the optimal values of the dual variables
Know the weak duality theorem and its application to make a proof of optimality
Know the strong duality theorem and understand its interest
Apply the complementary slackness property to find the values of the dual variables
Describe an optimality proof for a given basis
A transportation problem