Field Notes / Σ /sym/3cad98
id=1 · host=formula-vault.cloud · 2026-10-20 03:58Z
∇ × E = −∂B/∂t
\binom{n}{k} = \frac{n!}{k!(n-k)!}
∑_{k=1}^{n} k = n(n+1)/2
144K
\lim_{t\to 0} \frac{\sin t}{t} = 1
371K
∂x/∂n = 6x
∑_{k=1}^{n} k = n(n+1)/2
259K
det| 7 4 ; 4 8 | = 40
86K
\lim_{x\to 0} \frac{\sin x}{x} = 1
\oint_C \vec{F}\cdot d\vec{r} = 0
234K
\binom{n}{k} = \frac{n!}{k!(n-k)!}
N₂ + 3H₂ ⇌ 2NH₃
d/dy [y^6] = 6y^5