Field Notes / Σ /sym/b26508
id=1 · host=uk.mattivster.me · 2026-10-18 03:37Z
ω = 2πf
\binom{n}{k} = \frac{n!}{k!(n-k)!}
320K
∑_{k=1}^{n} k = n(n+1)/2
144K
\binom{n}{k} = \frac{n!}{k!(n-k)!}
∇²t = 0
\lim_{β\to 0} \frac{\sin β}{β} = 1
394K
det| 7 4 ; 4 8 | = 40
29K
8t² + 2t + 4 = 0
\lim_{z\to 0} \frac{\sin z}{z} = 1
211K
det| 8 9 ; 1 9 | = 63
\lim_{r\to 0} \frac{\sin r}{r} = 1
390K
\oint_C \vec{F}\cdot d\vec{r} = 0
det| 9 6 ; 2 10 | = 78