Make a collection of prerequisite math/physics skills
Let us make a separate page going over the required math skills. There we shouldn't only focus on how to obtain a solution, but also how to obtain a solution efficiently. Here's the list I have:
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Taylor expanding an integral -
system of 2 linear ODEs -
Taylor expanding a composite function -
Braket notation and Hamiltonian expectation values -
Discrete Fourier transform of simple 1D and 2D functions -
Asymptotics and limits -
Removing dimensional factors from integrals -
Gaussian integrals -
Symmetric n-d integrals (polar and spherical coords)
Edited by Anton Akhmerov