Field Notes / Σ /sym/3cad98
id=1 · host=formula-vault.cloud · 2026-10-18 23:25Z
d/dn [n^4] = 4n^3
∫₀^∞ e^(-z²) dz = √π / 2
385K
\lim_{θ\to 0} \frac{\sin θ}{θ} = 1
iħ ∂ψ/∂t = Ĥψ
\frac{2}{4} \sum_{i=1}^{n} i^{2}
H₂SO₄ + 2NaOH → Na₂SO₄ + 2H₂O
293K
\binom{n}{k} = \frac{n!}{k!(n-k)!}
300K
∑_{k=1}^{n} k = n(n+1)/2
368K