What parts of high numbers should be mastered in learning mathematical and physical equations, and it is best to be detailed, thank you!
That depends on what mathematical and physical methods you are studying. If it is class B, we should master the basic solutions of differential calculus, multiple integrals, curve integrals, surface integrals and high differential equations of multivariate functions. If it is class A, it is more necessary to learn Fourier series than class B; Gradual change; Directional derivative; Green's first and second formulas;