Field Notes / Σ /sym/3cad98
id=1 · host=formula-vault.cloud · 2026-10-19 00:11Z
4y² + 8y + 1 = 0
det| 4 7 ; 0 5 | = 20
46K
∑_{k=1}^{n} k = n(n+1)/2
468K
2H₂ + O₂ → 2H₂O
\frac{10}{7} \sum_{i=1}^{n} i^{2}
iħ ∂ψ/∂t = Ĥψ
AgNO₃ + NaCl → AgCl↓ + NaNO₃
121K
CaCO₃ → CaO + CO₂
Fe₂O₃ + 3CO → 2Fe + 3CO₂
399K
det| 9 8 ; 1 10 | = 82
\lim_{t\to 0} \frac{\sin t}{t} = 1
11K
det| 1 7 ; 7 2 | = -47
387K
\binom{n}{k} = \frac{n!}{k!(n-k)!}
144K
det| 12 7 ; 7 13 | = 107
67K
∑_{k=1}^{n} k = n(n+1)/2
338K
\binom{n}{k} = \frac{n!}{k!(n-k)!}
346K