Field Notes / Σ /sym/3cad98
id=1 · host=formula-vault.cloud · 2026-10-19 00:02Z
4y² + 8y + 1 = 0
\binom{n}{k} = \frac{n!}{k!(n-k)!}
46K
\binom{n}{k} = \frac{n!}{k!(n-k)!}
468K
2H₂ + O₂ → 2H₂O
∑_{k=1}^{n} k = n(n+1)/2
289K
det| 7 9 ; 1 8 | = 47
278K
\frac{10}{7} \sum_{i=1}^{n} i^{2}
det| 9 4 ; 1 10 | = 86
339K
iħ ∂ψ/∂t = Ĥψ
CaCO₃ → CaO + CO₂
AgNO₃ + NaCl → AgCl↓ + NaNO₃
det| 9 8 ; 1 10 | = 82