Math, C, Calculus, Numerical Analysis, Monte Carlo.
References Lisovskaja, Vera. Mathematical Statistics, Chalmers — TMS150, Stochastic Data Processing and Simulation, www.math.chalmers.se/Stat/Grundutb/CTH/tms150/1112/. Jarosz, Wojciech. “Efficient Monte Carlo Methods for Light Transport in Scattering Media.” UC San Diego, 2008,