المجلة الدولية للعلوم والتقنية

This paper presents a solution to multiple objective non-linear programming (MONLP) problems with rough objective functions and constraints with fuzzy parameters, we offer an algorithm to solve this type of problem, where we deal with multiple objective functions first, then with the fuzziness of the constraint parameter Characterizing, second and third, we deal with the roughness of the objective function. So, the problem finally turns into a non-linear programming problem with crisp objective functions and constraints. Finally, an illustrative example is given to show the application of the algorithm............... Keywords: .......Multiobjective non-linear programming (MONLP), rough function, Fuzzy number, Ranking function.