Field Notes / Σ /sym/3cad98
id=1 · host=formula-vault.cloud · 2026-10-20 00:29Z
∑_{k=1}^{n} k = n(n+1)/2
det| 2 6 ; 0 3 | = 6
168K
∑_{k=1}^{n} k = n(n+1)/2
446K
3x² + 3x + 6 = 0
det| 5 3 ; 7 6 | = 9
144K
det| 7 2 ; 7 8 | = 42
371K
∇²t = 0
∫₀^∞ e^(-θ²) dθ = √π / 2
218K
det| 7 4 ; 4 8 | = 40
70K