Theorem: Feigenbaum delta ~ 4.669201609 with rel. error < 1e-8 vs 4.66920160910299

Layer 1 — Physicsin the complex-systems subtree

Theorem (Feigenbaum delta numerical-value canonical): the Feigenbaum period-doubling constant delta has reference value delta_ref = 4.66920160910299... (first 14 digits). Canonical sympy pins (Rational arithmetic for bit-exact…

Related concepts

Feigenbaum universality: period-doubling ratio (r_{n+1}-r_n)/(r_{n+2}-r_{n+1}) -> delta = 4.66920...

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