Field Notes / Σ /sym/3cad98
id=1 · host=formula-vault.cloud · 2026-10-19 00:08Z
4y² + 8y + 1 = 0
\lim_{β\to 0} \frac{\sin β}{β} = 1
468K
2H₂ + O₂ → 2H₂O
\frac{7}{7} \sum_{i=1}^{n} i^{2}
278K
\frac{10}{7} \sum_{i=1}^{n} i^{2}
iħ ∂ψ/∂t = Ĥψ
CaCO₃ → CaO + CO₂
\frac{7}{7} \sum_{i=1}^{n} i^{2}
399K
det| 12 7 ; 5 13 | = 121
316K
det| 9 8 ; 1 10 | = 82
det| 1 5 ; 4 2 | = -18
387K
AgNO₃ + NaCl → AgCl↓ + NaNO₃
338K
∑_{k=1}^{n} k = n(n+1)/2
276K
det| 1 6 ; 3 2 | = -16
346K
det| 11 8 ; 6 12 | = 84
256K
\binom{n}{k} = \frac{n!}{k!(n-k)!}
396K