B(x)= sin(x^n+ε₁)/(sin(x^(n−1)+ε₂)+δ₁) − cos(x^n+ε₃)/(cos(x^(n−1)+ε₄)+δ₂)
Z(x)=tanh(λ·B(x))
M ← (1−μ)M + μZ
M>τ = YES
|M|≤τ = BALANCED
M<−τ = NO