Wallis Product: Two Diverging Halves Converge to π/2

N (terms in product) N = 100

Wallis Product (interleaved): ∏_n=1^N [2n/(2n−1) · 2n/(2n+1)] → π/2 Top-heavy only: ∏(2n/(2n−1)) → ∞ Bottom-heavy only: ∏(2n/(2n+1)) → 0

Note: top-heavy series exceeds 4 at N > 30 and is clamped in the chart below y=4. A "↑off chart" label indicates the true value when clamped.