Field Notes / Σ /sym/3cad98
id=1 · host=formula-vault.cloud · 2026-10-20 03:57Z
∇ × E = −∂B/∂t
∑_{k=1}^{n} k = n(n+1)/2
168K
\binom{n}{k} = \frac{n!}{k!(n-k)!}
∂x/∂n = 6x
AgNO₃ + NaCl → AgCl↓ + NaNO₃
259K
det| 5 6 ; 2 6 | = 18
86K
\lim_{x\to 0} \frac{\sin x}{x} = 1
det| 7 4 ; 4 8 | = 40
224K
\binom{n}{k} = \frac{n!}{k!(n-k)!}
det| 2 6 ; 0 3 | = 6
218K
12β² + 7β + 0 = 0
N₂ + 3H₂ ⇌ 2NH₃
d/dy [y^6] = 6y^5
5y² + 1y + 3 = 0
6θ² + 9θ + 7 = 0