I give this four stars mostly because of the second half of the course. I wish the second half took up the whole time. I didn't hate perturbation theory but it started to get on my nerves and I didn't find it particularly interesting. The second half of the course was asymptotic analysis and was similar but approached from the angle of analysing special functions and integrals. There were some pretty funky techniques and I still remember the ideas of a few of them, almost a year after I took the course. Worth doing.

Anonymous, Semester 2, 2017