What specific math is used in PCB design?

[MustafaGoyette]

I'm about to start designing PCBs in a college laboratory as a freshman who went through Calculus 1-3 easily. When it comes to the math of circuit theory, what specific formulas and math skills are actually used in practice for circuit design with PCBs?
I've seen other posts on here that some calculus is used, a lot of linear algebra, and some basic algebra. Any specific formulas of electricity/general math that is especially important when it comes to designing a circuit for a PCB (besides the basic V = IR) and how to apply them?
Also any other non-math things to learn or note when designing a PCB?