Field Notes / Σ /sym/3cad98
id=1 · host=formula-vault.cloud · 2026-10-20 03:58Z
∇ × E = −∂B/∂t
∫₀^∞ e^(-r²) dr = √π / 2
168K
\binom{n}{k} = \frac{n!}{k!(n-k)!}
∂x/∂n = 6x
\lim_{x\to 0} \frac{\sin x}{x} = 1
\binom{n}{k} = \frac{n!}{k!(n-k)!}
∫₀^∞ e^(-t²) dt = √π / 2
218K
N₂ + 3H₂ ⇌ 2NH₃
H₂SO₄ + 2NaOH → Na₂SO₄ + 2H₂O
402K
5y² + 1y + 3 = 0