Field Notes / Σ /sym/3cad98
id=1 · host=formula-vault.cloud · 2026-10-19 00:10Z
4y² + 8y + 1 = 0
AgNO₃ + NaCl → AgCl↓ + NaNO₃
468K
2H₂ + O₂ → 2H₂O
\binom{n}{k} = \frac{n!}{k!(n-k)!}
289K
\frac{10}{7} \sum_{i=1}^{n} i^{2}
∑_{k=1}^{n} k = n(n+1)/2
339K
iħ ∂ψ/∂t = Ĥψ
CaCO₃ → CaO + CO₂
\frac{10}{5} \sum_{i=1}^{n} i^{2}
399K
H₂SO₄ + 2NaOH → Na₂SO₄ + 2H₂O
11K
det| 4 9 ; 6 5 | = -34
387K
\lim_{y\to 0} \frac{\sin y}{y} = 1
144K
det| 3 7 ; 3 4 | = -9
67K
det| 7 2 ; 3 8 | = 50
97K
∑_{k=1}^{n} k = n(n+1)/2
396K