<p>i was wondering if it's necessary (or recommended) to take 20D before 20F. </p>
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<p>Also, how did everyone do on the 20C midterm?</p>
<p>I took 20D before 20F, I know other people who took 20F before 20D, I don't think it really matters which you take first. I think the main topic that overlaps with both courses is eigenvalues/eigenvectors and such, other than that the courses are pretty different/independent of each other. If I were you I would just take the class that most of your friends are taking, or take the one that fits best into your schedule.... that's what I did :)</p>