Here are the various forms of fart entropy that have been observed in 2021:
A state of high-pressure and low-frequency farts.
Methane Madness = ƒ(m, λ) = ∫(f(t) \* exp(-λt)dt
A state of farts with high rotational symmetry.
Rottonal Rottenness = ƒ(θ) = ∑(cos(θi) \* sin(θi+1) \* exp(-i \* θi)
A state of farts with high-temperature and low-regularity.
Chaotic Flatus = ƒ(T, λ) = ∫(f(t) \* exp(-λt)dt
A state of farts with high quantum fluctuations.
Quantum Flatus Quantum Uncertainty = ƒ(ψ, λ) = ∫(f(ψ) \* exp(-λψ)dt