Field Notes / Σ /sym/3cad98
id=1 · host=formula-vault.cloud · 2026-10-19 00:13Z
4y² + 8y + 1 = 0
\frac{5}{4} \sum_{i=1}^{n} i^{2}
46K
H₂SO₄ + 2NaOH → Na₂SO₄ + 2H₂O
468K
2H₂ + O₂ → 2H₂O
det| 7 3 ; 6 8 | = 38
289K
\frac{10}{7} \sum_{i=1}^{n} i^{2}
iħ ∂ψ/∂t = Ĥψ
CaCO₃ → CaO + CO₂
\frac{5}{6} \sum_{i=1}^{n} i^{2}
399K
\frac{7}{7} \sum_{i=1}^{n} i^{2}
316K
det| 9 8 ; 1 10 | = 82
\lim_{z\to 0} \frac{\sin z}{z} = 1
387K
\oint_C \vec{F}\cdot d\vec{r} = 0
144K
\binom{n}{k} = \frac{n!}{k!(n-k)!}
276K
∑_{k=1}^{n} k = n(n+1)/2
346K