Field Notes / Σ /sym/3cad98
id=1 · host=formula-vault.cloud · 2026-10-18 22:34Z
∑_{k=1}^{n} k = n(n+1)/2
∑_{k=1}^{n} k = n(n+1)/2
384K
det| 9 5 ; 1 10 | = 85
385K
det| 11 9 ; 4 12 | = 96
∫₀^∞ e^(-α²) dα = √π / 2
163K
det| 7 4 ; 4 8 | = 40
259K
∇ × E = −∂B/∂t
Fe₂O₃ + 3CO → 2Fe + 3CO₂
57K