Field Notes / Σ /sym/3cad98
id=1 · host=formula-vault.cloud · 2026-10-18 22:00Z
∑_{k=1}^{n} k = n(n+1)/2
det| 11 9 ; 4 12 | = 96
∑_{k=1}^{n} k = n(n+1)/2
163K
∑_{k=1}^{n} k = n(n+1)/2
259K
∇ × E = −∂B/∂t
det| 7 4 ; 4 8 | = 40
354K
∫₀^∞ e^(-x²) dx = √π / 2
368K