Example: Process control LP model

1. Definition of variables

     
    number of 50 cm bars cut according plan 1,2,3,4,5,6

    P total number of cut 50 cm bars

2. Objective function
     

    Minimise: 

    The total number of used source material is a sum of bar cut according all cutting plans.

3. Constraints
     

    The constraint reflect that the minimal number of demanded short bars A,B,C should be reached by combination of cutting plans.
     

4. Non-negativity