Field Notes / Σ /sym/b26508
id=1 · host=uk.mattivster.me · 2026-10-19 07:07Z
∂y/∂t = 1y
det| 1 4 ; 2 2 | = -6
66K
\lim_{ω\to 0} \frac{\sin ω}{ω} = 1
222K
\binom{n}{k} = \frac{n!}{k!(n-k)!}
∑_{k=1}^{n} k = n(n+1)/2
2K
ΔS ≥ 0
det| 5 6 ; 2 6 | = 18
174K
∑_{k=1}^{n} k = n(n+1)/2
61K
det| 6 1 ; 1 7 | = 41
∑_{k=1}^{n} k = n(n+1)/2
380K
\oint_C \vec{F}\cdot d\vec{r} = 0
335K
\lim_{n\to 0} \frac{\sin n}{n} = 1
det| 9 4 ; 1 10 | = 86
119K
\binom{n}{k} = \frac{n!}{k!(n-k)!}
472K
∑_{k=1}^{n} k = n(n+1)/2
392K