Wilson

Back to Wilson (Ternary)

ln(γ_i) = 1 - ln(summation from j=1 to 3 of [A_ij × x_j] - summation from j=1 to 3 of [(A_ji × x_j) / summation from k=1 to 3 of [A_jk × x_k]])

where
A₁₂ = binary parameter a₂
A₂₁ = binary parameter a₁
A_ii = 0