Flow Chart for Required Courses with Prerequisites. Last modified November 11, 2011. Courses are offered both semesters except as noted. Year 1 Fall: Math 221. EPD 160 (freshmen only). Spring: Math 222, prerequisite is Math 221. Physics 201, prerequisite is Math 221. Year 2 Fall: Math 234, prerequisite is Math 222. Physics 202, prerequisite is Physics 201. Computer Science Elective. Statistics 311. Spring: Industrial and Systems Engineering 313. Statistics 312, prerequisite is Statistics 311. Industrial and Systems Engineering 315, prerequisites are Computer Science 302 or 310 and Statistics 311. Year 3 Fall: Industrial and Systems Engineering 323 prerequisite is IE 313 and either Math 320 or Math 340 Industrial and Systems Engineering 349, prerequisite is Statistics 311. Spring: Industrial and Systems Engineering 320 LEC and 321 LAB (concurrently enrollment required), prerequisite is Statistics 312 and either Math 320 or Math 340. Year 4 Fall: Industrial and Systems Engineering 415, prerequisites are IE 315, 320, and 321. Industrial and Systems Engineering 417, prerequsites are IE 313, 320, 321, 323 and 349.