FastRng/FastRng/Distributions/BetaA2B2.cs

using System;

namespace FastRng.Distributions
{
    public sealed class BetaA2B2 : Distribution
    {
        private const float ALPHA = 2f;
        private const float BETA = 2f;
        private const float CONSTANT = 4f;

        public BetaA2B2(IRandom rng) : base(rng)
        {
        }

        private protected override float ShapeFunction(float x) => CONSTANT * MathF.Pow(x, ALPHA - 1f) * MathF.Pow(1f - x, BETA - 1f);
    }
}