Registry · Definition
IV.D43
tau-effective
formalized
IV.D43 — Spectral Distance √3
√3 ≈ 17320508/10000000 (7 digits). Arises as |1-ω| where ω = e^{2πi/3}. Approximation quality: (√3_approx)² < 3 < (√3_approx)²·(1+10⁻⁷).
Book IV
Part 3
Ch. 23