Field Notes / Σ /sym/3cad98
id=1 · host=formula-vault.cloud · 2026-10-19 20:13Z
\binom{n}{k} = \frac{n!}{k!(n-k)!}
\oint_C \vec{F}\cdot d\vec{r} = 0
46K
CaCO₃ → CaO + CO₂
\lim_{β\to 0} \frac{\sin β}{β} = 1
289K
e^{i\pi} + 1 = 0
∂x/∂r = 4x
H₂SO₄ + 2NaOH → Na₂SO₄ + 2H₂O
det| 7 9 ; 1 8 | = 47
399K
det| 12 4 ; 4 13 | = 140
det| 7 8 ; 4 8 | = 24
11K
Fe₂O₃ + 3CO → 2Fe + 3CO₂
387K
∑_{k=1}^{n} k = n(n+1)/2
N₂ + 3H₂ ⇌ 2NH₃