Originally posted by: Sultan_Niz7755

Hello, everybody,
I'm now working on the topic of improving patient planning in the OR using linear programming. I have implemented my model in Cplex. 
My objective is only the binary decision variable. Therefore, the question arises: Can I still call it Linear Programming? 
many thanks in advance
many greetings, Sherzod

Hi,

then it will be an IP model but CPLEX can solve that.

You have an example of pure IP in CPLEX_Studio129\opl\examples\opl\lifegameip

regards

Originally posted by: Sultan_Niz7755

Hi Alex, 

thank you very much for your quick reply. After your advice I have to change my model to linear programming in order to accept it as linear programming. am I right there?

thank you in advance!!

Regards, 

Sherzod

Hi

do not change anything.

By default OPL will use CPLEX MIP algorithms.

If you write "using CP;"

then CPO will be called

regards

Originally posted by: Sultan_Niz7755

Hi Alex,

thank you very much for your quickly reply.

regards, Sherzod

No, integer programming (IP) is not the same as linear programming (LP). While both are optimization techniques used to find the best solution to a problem, they differ in their constraints.

• Linear programming deals with problems where the decision variables can take any real value within a specified range. The objective function and constraints are also linear equations.

• Integer programming adds an additional constraint: the decision variables must be whole numbers (integers). This makes IP problems more challenging to solve, as they involve finding the optimal solution from a discrete set of possibilities.