Field Notes / Σ /sym/3cad98
id=1 · host=formula-vault.cloud · 2026-10-20 03:29Z
∇ × E = −∂B/∂t
\binom{n}{k} = \frac{n!}{k!(n-k)!}
168K
det| 7 4 ; 4 8 | = 40
446K
\binom{n}{k} = \frac{n!}{k!(n-k)!}
∂x/∂n = 6x
∫₀^∞ e^(-ω²) dω = √π / 2
259K
\frac{3}{2} \sum_{i=1}^{n} i^{2}
86K
\lim_{x\to 0} \frac{\sin x}{x} = 1
det| 9 8 ; 3 10 | = 66
224K
∑_{k=1}^{n} k = n(n+1)/2
218K
∑_{k=1}^{n} k = n(n+1)/2
354K
H₂SO₄ + 2NaOH → Na₂SO₄ + 2H₂O
402K