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)!}
det| 7 7 ; 4 8 | = 28
144K
∂x/∂n = 6x
det| 9 4 ; 1 10 | = 86
86K
\lim_{x\to 0} \frac{\sin x}{x} = 1
det| 5 6 ; 2 6 | = 18
224K
∑_{k=1}^{n} k = n(n+1)/2
234K
\binom{n}{k} = \frac{n!}{k!(n-k)!}
det| 10 3 ; 4 11 | = 98
218K
N₂ + 3H₂ ⇌ 2NH₃
d/dy [y^6] = 6y^5