You are a physics major. Could you please get your shit together and remember what the fundamental constants are? Seriously. You’re a fucking junior and can’t recognize the symbol for Permittivity of Free Space when it’s literally the only thing that symbol is used for…ever. Please pay attention so we don’t have to give you a constants review every fucking time a Greek letter pops up in a formula.
This is Quantum Mechanics. If you don’t understand how to take derivatives and substitute numbers into an equation, fucking leave and go change your major right now. There is no way you can actually be that stupid.
If your lecture notes are just gonna come right out of the book, why the fuck am I paying money for this class? Between the book and the Internet, I could teach myself all the shit you’re throwing up on the board. I would like to actually learn some Quantum Mechanics, not calculus and differential equations. I know that shit already. Stop coddling the stupid people and let’s actually learn some shit.