Field Notes / Σ /sym/3cad98
id=1 · host=formula-vault.cloud · 2026-10-18 23:48Z
d/dn [n^4] = 4n^3
\binom{n}{k} = \frac{n!}{k!(n-k)!}
385K
\lim_{θ\to 0} \frac{\sin θ}{θ} = 1
iħ ∂ψ/∂t = Ĥψ
AgNO₃ + NaCl → AgCl↓ + NaNO₃
305K
\frac{2}{4} \sum_{i=1}^{n} i^{2}
Fe₂O₃ + 3CO → 2Fe + 3CO₂
110K
det| 5 7 ; 5 6 | = -5
det| 2 6 ; 0 3 | = 6
300K
det| 12 9 ; 4 13 | = 120
Fe₂O₃ + 3CO → 2Fe + 3CO₂
iħ ∂ψ/∂t = Ĥψ
2r² + 6r + 7 = 0
5θ² + 9θ + 7 = 0