Abstract
[Journal of Computational Methods in Sciences and Engineering, 21(3) (2021), 723–735, 10.3233/JCM-215148]
In this article, the acknowledgment was missing.
It should be added as follows:
The work was financially supported by Scientific and Technological Research Program of Chongqing Municipal Education Commission (KJQN201804001).
The authors apologize for the errors.