title,doi,url,abstract,journal,publication_year,pmid,arxiv Application of Complex Integral Formula on Evaluating Line Integral Problems, https://doi.org/10.32628/IJSRCSEIT, https://ijsrcseit.com/CSEIT161221, In this paper we study two types of two dimensional line integral problems. The closed forms of the two types of line integrals can be determined by using a complex integral formula. In addition two examples are proposed to do calculation practically. The method adopted in this study is to find solutions through manual calculations and verify the answers using Maple., International Journal of Scientific Research in Computer Science Engineering and Information Technology, 2016, CSEIT161221