Field Notes / Σ /sym/3cad98
id=1 · host=formula-vault.cloud · 2026-10-19 01:20Z
\lim_{n\to 0} \frac{\sin n}{n} = 1
∑_{k=1}^{n} k = n(n+1)/2
468K
ω = 2πf
\oint_C \vec{F}\cdot d\vec{r} = 0
289K
det| 1 7 ; 1 2 | = -5
det| 7 4 ; 4 8 | = 40
177K
Fe₂O₃ + 3CO → 2Fe + 3CO₂
∑_{k=1}^{n} k = n(n+1)/2
121K
d/dn [n^1] = 1n^0
\binom{n}{k} = \frac{n!}{k!(n-k)!}
399K
8β² + 8β + 2 = 0
det| 1 7 ; 4 2 | = -26
∂γ/∂ψ = 5γ
H₂SO₄ + 2NaOH → Na₂SO₄ + 2H₂O