Table 1: A comparison between the proposed approach, [22] and [29] for the same number of function evaluations in solving the problem of (2). The best results are indicated in boldface.

Best Mean Worst Proposed approach 13.590846 13.61073 13.84861 [29] 13.59658 — 244.11616 [22] 13.59085 30.74880 152.54840