Field Notes / Σ /sym/b26508
id=1 · host=uk.mattivster.me · 2026-10-19 05:47Z
Fe₂O₃ + 3CO → 2Fe + 3CO₂
\lim_{α\to 0} \frac{\sin α}{α} = 1
∇²α = 0
det| 7 4 ; 4 8 | = 40
61K
\lim_{t\to 0} \frac{\sin t}{t} = 1
∑_{k=1}^{n} k = n(n+1)/2
335K
\oint_C \vec{F}\cdot d\vec{r} = 0
\binom{n}{k} = \frac{n!}{k!(n-k)!}
119K
det| 7 4 ; 3 8 | = 44
det| 5 6 ; 2 6 | = 18
392K
10θ² + 5θ + 4 = 0
ΔS ≥ 0
∂θ/∂r = 3θ