Field Notes / Σ /sym/3cad98
id=1 · host=formula-vault.cloud · 2026-10-19 00:10Z
4y² + 8y + 1 = 0
∑_{k=1}^{n} k = n(n+1)/2
46K
\binom{n}{k} = \frac{n!}{k!(n-k)!}
468K
2H₂ + O₂ → 2H₂O
\frac{10}{7} \sum_{i=1}^{n} i^{2}
∑_{k=1}^{n} k = n(n+1)/2
339K
\frac{6}{1} \sum_{i=1}^{n} i^{2}
177K
iħ ∂ψ/∂t = Ĥψ
CaCO₃ → CaO + CO₂
\binom{n}{k} = \frac{n!}{k!(n-k)!}
316K
det| 9 8 ; 1 10 | = 82
Fe₂O₃ + 3CO → 2Fe + 3CO₂
11K
\binom{n}{k} = \frac{n!}{k!(n-k)!}
387K
∂ω/∂t = 2ω
det| 7 8 ; 6 8 | = 8
144K
det| 6 8 ; 1 7 | = 34
67K
∑_{k=1}^{n} k = n(n+1)/2
276K
\lim_{α\to 0} \frac{\sin α}{α} = 1
256K