2.5 courses: Applied Mathematics 2811B, Applied Mathematics 2814F/G or the former Applied Mathematics 2813B, Applied Mathematics 3151A/B, Applied Mathematics 3615A/B, Applied Mathematics 3811A/B, Applied Mathematics 3813A/B, Applied Mathematics 3815A/B, Applied Mathematics 3911F/G, Financial Modelling 3817A/B or the former Applied Mathematics 3817A/B.0.5 course: Calculus 2502A/B (recommended) or Calculus 2302A/B.0.5 course: Calculus 2503A/B (recommended) or Calculus 2303A/B.0.5 course: Applied Mathematics 2402A or the former Differential Equations 2402A.