Field Notes / Σ /sym/b26508
id=1 · host=uk.mattivster.me · 2026-10-19 07:44Z
∂y/∂t = 1y
\lim_{r\to 0} \frac{\sin r}{r} = 1
66K
\oint_C \vec{F}\cdot d\vec{r} = 0
222K
\binom{n}{k} = \frac{n!}{k!(n-k)!}
ΔS ≥ 0
det| 7 4 ; 4 8 | = 40
174K
det| 6 1 ; 1 7 | = 41
\lim_{n\to 0} \frac{\sin n}{n} = 1
∑_{k=1}^{n} k = n(n+1)/2
472K
\frac{9}{7} \sum_{i=1}^{n} i^{2}
\frac{2}{2} \sum_{i=1}^{n} i^{2}
392K
3α² + 5α + 4 = 0
2H₂ + O₂ → 2H₂O
F = G m₁m₂ / r²