Your undergraduate degree must be in engineering, sciences, or mathematics from an institution accredited by an agency recognized by the U.S. Department of Education, and should have included: Undergraduate courses in calculus, linear algebra, and differential equations. Two semesters of undergraduate calculus-based physics. At least two semesters of upper-division undergraduate courses in engineering or physics. MS preferred undergraduate GPA: 3.2. The minimum required score is 6.5. TOEFL ibt: The minimum require score is 80. TOEFL pbt: 550.