Field Notes / Σ /sym/3cad98
id=1 · host=formula-vault.cloud · 2026-10-18 22:15Z
∑_{k=1}^{n} k = n(n+1)/2
∑_{k=1}^{n} k = n(n+1)/2
384K
det| 3 6 ; 0 4 | = 12
385K
det| 11 9 ; 4 12 | = 96
∫₀^∞ e^(-r²) dr = √π / 2
163K
det| 12 2 ; 2 13 | = 152
259K
∇ × E = −∂B/∂t
5z² + 5z + 0 = 0
Fe₂O₃ + 3CO → 2Fe + 3CO₂
293K
det| 11 4 ; 5 12 | = 112
110K
det| 6 6 ; 3 7 | = 24