Mathematics
- Bessel functions
- Chebyshev polynomials
- Dirac delta distribution
- Fast Fourier transform
- Fourier analysis
- Heaviside step distribution
- Kronecker delta
- Laguerre polynomials
- Legendre polynomials
- Legendre transform
- Padé approximants
- Perron-Frobenius theorem
- Ramp function
- Root finding
- Spherical harmonics
- Standard integrals
- Stirling's approximation
- Taylor expansion
- Wigner rotation matrices