def definition def or abbrev

`attempt2`

No prose has been written for this declaration yet. The Lean source and graph data below render without it.

formal statement (Lean)

  94noncomputable def attempt2 : ℝ := phi^2 + (1 - 1/phi)

Definition body.

  95
  96/-- Attempt 3: e ≈ 2 + 1/φ²
  97
  98    1/φ² = φ - 1 = 0.618
  99    Wait: 1/φ² = (φ-1)² = 0.382
 100    2 + 0.382 = 2.382 (too small) -/