Science and Education Publishing Automatic Control and Information Sciences 2 3 2014 07 08 Closed Forms of Some Definite Integrals 49 52 EN Chii-Huei Yu Department of Management and Information, Nan Jeon University of Science and Technology, Tainan City, Taiwan ACIS2014231 10.12691/acis-2-3-1 2014 06 21 2014 07 05 2014 07 08 This paper studies two types of definite integrals and uses Maple for verification. The closed forms of these definite integrals can be obtained using Poisson integral formula. On the other hand, some examples are used to demonstrate the calculations.