Field Notes / Σ /sym/b26508
id=1 · host=uk.mattivster.me · 2026-10-19 07:38Z
∂y/∂t = 1y
\oint_C \vec{F}\cdot d\vec{r} = 0
66K
∑_{k=1}^{n} k = n(n+1)/2
222K
\binom{n}{k} = \frac{n!}{k!(n-k)!}
det| 2 4 ; 4 3 | = -10
87K
ΔS ≥ 0
det| 11 9 ; 0 12 | = 132
174K
∑_{k=1}^{n} k = n(n+1)/2
61K
det| 6 1 ; 1 7 | = 41
det| 7 4 ; 4 8 | = 40
380K
\lim_{n\to 0} \frac{\sin n}{n} = 1
∫₀^∞ e^(-φ²) dφ = √π / 2
119K
\frac{9}{7} \sum_{i=1}^{n} i^{2}
det| 1 2 ; 4 2 | = -6
392K
2H₂ + O₂ → 2H₂O
F = G m₁m₂ / r²