I need some help figuring out what these formulas mean and what they relate to. All I know is the 'upside-down triangle' symbol is known as a "Del", and it's used in vector calculus. Before the list of equations, it says "And God said...". After the list of equations, it says "...And there was light." I'm guessing they might spell something in Latin which translates to "Let there be light", aka, "fiat lux". Any help is appreciated!