<p>What's the normal order for taking the math 20 series? I'll have finished 20C this quarter but was wondering what to do next. I've heard of people taking F before D, and I've also heard E is the hardest.</p>
<p>The professors teaching the classes are:
Math 20D John Eggers, Melvin Leok
20E Shengli Kong, Stefaan De Winter
20F James Lin, Wee Gan</p>
<p>Please let me know if anyone's had experience with any of these professors. Thanks!</p>