Math, C, Calculus, Numerical Analysis, Monte Carlo.
20.0 is 1.125, STD = 1.8661, (16 iterations) Estimate for 0.0 -> 20.0 is 2.113, STD = 0.7077, (64 iterations) Estimate for 0.0 -> 20.0 is 3.860, STD = 0.1922, (256 iterations) Estimate for 0.0 -> 20.0 is 3.439, STD = 0.0464, (1024 iterations) Estimate for 0.0 -> 20.0 is 3.689, STD = 0.0116, (4096