Field Notes / Σ /sym/3cad98
id=1 · host=formula-vault.cloud · 2026-10-19 20:49Z
\binom{n}{k} = \frac{n!}{k!(n-k)!}
\frac{4}{9} \sum_{i=1}^{n} i^{2}
468K
CaCO₃ → CaO + CO₂
det| 11 9 ; 0 12 | = 132
289K
\oint_C \vec{F}\cdot d\vec{r} = 0
278K
e^{i\pi} + 1 = 0
det| 9 4 ; 1 10 | = 86
339K
det| 7 9 ; 1 8 | = 47
177K
∂x/∂r = 4x
H₂SO₄ + 2NaOH → Na₂SO₄ + 2H₂O
\lim_{r\to 0} \frac{\sin r}{r} = 1
399K
det| 12 4 ; 4 13 | = 140
\frac{4}{5} \sum_{i=1}^{n} i^{2}
∑_{k=1}^{n} k = n(n+1)/2
N₂ + 3H₂ ⇌ 2NH₃