Field Notes / Σ /sym/3cad98
id=1 · host=formula-vault.cloud · 2026-10-19 20:30Z
\binom{n}{k} = \frac{n!}{k!(n-k)!}
det| 7 7 ; 4 8 | = 28
46K
Fe₂O₃ + 3CO → 2Fe + 3CO₂
468K
CaCO₃ → CaO + CO₂
e^{i\pi} + 1 = 0
∑_{k=1}^{n} k = n(n+1)/2
177K
∂x/∂r = 4x
det| 9 4 ; 1 10 | = 86
121K
H₂SO₄ + 2NaOH → Na₂SO₄ + 2H₂O
∫₀^∞ e^(-ω²) dω = √π / 2
399K
det| 12 4 ; 4 13 | = 140
det| 11 5 ; 0 12 | = 132
387K
∑_{k=1}^{n} k = n(n+1)/2