**Appendix A**

Performance Comparison based on Worst, Mean and Variance.



**Figure A1.** Algorithms' convergence plots on *f*2.

**Figure A2.** Algorithms' convergence plots on *f*3.

**Figure A3.** Algorithms' convergence plots on *f*4.

**Figure A4.** Algorithms' convergence plots on *f*6.

**Figure A5.** Algorithms' convergence plots on *f*8.

**Figure A6.** Algorithms' convergence plots on *f*9.

**Figure A7.** Algorithms' convergence plots on *f*10.
