Field Notes / Σ /sym/3cad98
id=1 · host=formula-vault.cloud · 2026-10-19 20:58Z
\binom{n}{k} = \frac{n!}{k!(n-k)!}
Fe₂O₃ + 3CO → 2Fe + 3CO₂
46K
det| 9 4 ; 1 10 | = 86
468K
CaCO₃ → CaO + CO₂
e^{i\pi} + 1 = 0
∂x/∂r = 4x
∫₀^∞ e^(-n²) dn = √π / 2
121K
det| 2 8 ; 7 3 | = -50
316K
∑_{k=1}^{n} k = n(n+1)/2
11K