Field Notes / Σ /sym/3cad98
id=1 · host=formula-vault.cloud · 2026-10-19 00:03Z
4y² + 8y + 1 = 0
CH₄ + 2O₂ → CO₂ + 2H₂O
468K
2H₂ + O₂ → 2H₂O
\frac{10}{7} \sum_{i=1}^{n} i^{2}
AgNO₃ + NaCl → AgCl↓ + NaNO₃
339K
iħ ∂ψ/∂t = Ĥψ
∫₀^∞ e^(-r²) dr = √π / 2
358K
H₂SO₄ + 2NaOH → Na₂SO₄ + 2H₂O
121K
CaCO₃ → CaO + CO₂
\frac{9}{3} \sum_{i=1}^{n} i^{2}
316K
AgNO₃ + NaCl → AgCl↓ + NaNO₃
144K
det| 12 7 ; 5 13 | = 121
67K
∑_{k=1}^{n} k = n(n+1)/2
338K
det| 7 1 ; 4 8 | = 52
276K
\binom{n}{k} = \frac{n!}{k!(n-k)!}
346K