Today my professor wrote this on the board:



If you don't know what this means, don't worry, neither do I. Unfortunately I should know what this all means since I have a test over it tomorrow which is worth 33% of my grade. I hope I can figure this shit out, it seems to come easily to everybody else in the class, but they of course have taken higher level classes which aren't explicitly prerequisites, but they damn well should be. UGH, what am I saying? I had better get studying.