Field Notes / Σ /sym/3cad98
id=1 · host=formula-vault.cloud · 2026-10-20 03:57Z
∇ × E = −∂B/∂t
\binom{n}{k} = \frac{n!}{k!(n-k)!}
det| 11 4 ; 5 12 | = 112
144K
\binom{n}{k} = \frac{n!}{k!(n-k)!}
371K
∂x/∂n = 6x
det| 9 8 ; 3 10 | = 66
86K
\lim_{x\to 0} \frac{\sin x}{x} = 1
\frac{4}{6} \sum_{i=1}^{n} i^{2}
224K
\binom{n}{k} = \frac{n!}{k!(n-k)!}
234K
\binom{n}{k} = \frac{n!}{k!(n-k)!}
∑_{k=1}^{n} k = n(n+1)/2
218K
det| 9 4 ; 1 10 | = 86
354K
N₂ + 3H₂ ⇌ 2NH₃
H₂SO₄ + 2NaOH → Na₂SO₄ + 2H₂O
402K
5y² + 1y + 3 = 0