Field Notes / Σ /sym/3cad98
id=1 · host=formula-vault.cloud · 2026-10-20 03:48Z
∇ × 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
det| 7 6 ; 1 8 | = 50
259K
det| 9 4 ; 1 10 | = 86
86K
\lim_{x\to 0} \frac{\sin x}{x} = 1
∑_{k=1}^{n} k = n(n+1)/2
224K
\binom{n}{k} = \frac{n!}{k!(n-k)!}
12β² + 7β + 0 = 0
N₂ + 3H₂ ⇌ 2NH₃
d/dy [y^6] = 6y^5
5y² + 1y + 3 = 0