Field Notes / Σ /sym/3cad98
id=1 · host=formula-vault.cloud · 2026-10-18 22:33Z
∑_{k=1}^{n} k = n(n+1)/2
det| 2 7 ; 7 3 | = -43
384K
∑_{k=1}^{n} k = n(n+1)/2
385K
det| 11 9 ; 4 12 | = 96
det| 6 6 ; 5 7 | = 12
163K
∫₀^∞ e^(-θ²) dθ = √π / 2
259K
∇ × E = −∂B/∂t
Fe₂O₃ + 3CO → 2Fe + 3CO₂
305K
5z² + 5z + 0 = 0
det| 7 4 ; 4 8 | = 40
293K
det| 2 6 ; 0 3 | = 6
110K
det| 6 6 ; 3 7 | = 24