2-dimensional Functions

1. Ackley N. 2 Function
   

   2-dimensional non-separable unimodal convex differentiable

2. Ackley N. 3 Function
   

   2-dimensional non-separable multimodal non-convex differentiable

3. Adjiman Function
   

   2-dimensional non-separable multimodal non-convex differentiable

4. Bartels Conn Function
   

   2-dimensional non-separable multimodal non-convex non-differentiable

5. Beale Function
   

   2-dimensional continuous multimodal non-convex

6. Bird Function
   

   2-dimensional non-separable multimodal non-convex differentiable

7. Bohachevsky N. 1 Function
   

   2-dimensional continuous convex unimodal

8. Bohachevsky N. 2 Function
   

   2-dimensional non-separable multimodal non-convex differentiable

9. Booth Function
   

   2-dimensional continuous convex differentiable non-separable unimodal convex

10. Brent Function
    

    2-dimensional non-separable unimodal convex differentiable

11. Bukin N. 6 Function
    

    2-dimensional continuous convex non-differentiable non-separable multimodal convex non-scalable

12. Cross-in-Tray Function
    

    2-dimensional continuous non-differentiable non-separable multimodal non-convex

13. Deckkers-Aarts Function
    

    2-dimensional continuous differentiable non-separable multimodal non-convex

14. Drop-Wave Function
    

    2-dimensional continuous unimodal non-convex

15. Easom Function
    

    2-dimensional continuous differentiable separable multimodal non-convex non-scalable

16. Egg Crate Function
    

    2-dimensional continuous differentiable separable multimodal non-convex

17. El-Attar-Vidyasagar-Dutta Function
    

    2-dimensional continuous multimodal non-convex differentiable

18. Goldstein-Price Function
    

    2-dimensional continuous differentiable non-separable multimodal non-convex non-scalable

19. Himmelblau Function
    

    2-dimensional continuous multimodal non-convex

20. Holder-Table Function
    

    2-dimensional continuous non-differentiable non-separable multimodal non-convex

21. Keane Function
    

    2-dimensional continuous differentiable non-separable multimodal non-convex

22. Leon Function
    

    2-dimensional continuous differentiable non-separable unimodal non-convex

23. Levi N. 13 Function
    

    2-dimensional continuous differentiable non-separable multimodal non-convex

24. Matyas Function
    

    2-dimensional continuous differentiable non-separable unimodal convex

25. McCormick Function
    

    2-dimensional continuous differentiable multimodal non-scalable convex

26. Schaffer N. 1 Function
    

    2-dimensional continuous differentiable non-separable unimodal non-convex

27. Schaffer N. 2 Function
    

    2-dimensional continuous differentiable non-separable unimodal non-convex

28. Schaffer N. 3 Function
    

    2-dimensional continuous differentiable non-convex unimodal non-separable non-convex

29. Schaffer N. 4 Function
    

    2-dimensional continuous differentiable non-convex unimodal non-separable non-convex

30. Three-Hump Camel Function
    

    2-dimensional continuous differentiable non-separable unimodal non-convex