Field Notes / Σ /sym/3cad98
id=1 · host=formula-vault.cloud · 2026-10-18 23:00Z
d/dn [n^4] = 4n^3
det| 9 4 ; 1 10 | = 86
384K
\binom{n}{k} = \frac{n!}{k!(n-k)!}
385K
\lim_{θ\to 0} \frac{\sin θ}{θ} = 1
∫₀^∞ e^(-x²) dx = √π / 2
163K
iħ ∂ψ/∂t = Ĥψ
∑_{k=1}^{n} k = n(n+1)/2
57K
\frac{2}{4} \sum_{i=1}^{n} i^{2}
\frac{3}{2} \sum_{i=1}^{n} i^{2}
293K
det| 5 7 ; 5 6 | = -5
det| 12 9 ; 4 13 | = 120
Fe₂O₃ + 3CO → 2Fe + 3CO₂
iħ ∂ψ/∂t = Ĥψ