About the Authors

Jia Hou Chin

Affiliation Institute of Mathematical Science, University of Malaya, Kuala Lumpur, Malaysia

Kuru Ratnavelu

kuru052001@gmail.com

Affiliation Institute of Mathematical Science, University of Malaya, Kuala Lumpur, Malaysia

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: JHC KR. Performed the experiments: JHC. Analyzed the data: JHC. Contributed reagents/materials/analysis tools: JHC. Wrote the paper: JHC KR.