So I'm taking some math/probability/theoretical computer science courses, and I have exams that go with it. The exams are mostly open-book, so I made myself a handy little formular, mainly to avoid panic at "easy stuff I just can't remember right NOW and AAAAAAAH ONLY 2 HOURS LEFT". Or something.

This is very ad hoc and, again, is probably only useful to me and my particular quirks, but, just in case...

The current version (which may or may not be updated depending on my needs for exams) contains:

- some trivial stuff about logs and powers - essentially the kind of stuff I tend to make stupid mistakes about, and stuff I really don't want to re-deduce from basics when in an exam
- some binomial coefficient values, approximations, identities
- basic facts about binomial and geometric distribution
- a few "usual limits" (this could probably use some more items) that, again, can be useful
- some classical approximations and bounds, useful to get some idea of the order of magnitude of stuff (and put some O(.) in there)
- some numerical values, because obviously exams are taken without any computing device of any sort; and I tend to struggle with orders of magnitude, especially in a stressful environment
- some usual series and their terms
- some "randomized algorithms analysis tools" (a few useful theorems and bounds), as given in my lecture notes of Randomized Algorithms by Pr A. Steger
- a multiplication table over 20x20 (because yes, it took me a long time to master my multiplication table, and by mastering, I mean......... well.

And the document is available as PDF: Exam formular (PDF) and as TeX source: Exam formular (TeX).