Field Notes / Σ /sym/b26508
id=1 · host=uk.mattivster.me · 2026-10-19 03:19Z
\frac{1}{3} \sum_{i=1}^{n} i^{2}
\binom{n}{k} = \frac{n!}{k!(n-k)!}
66K
∑_{k=1}^{n} k = n(n+1)/2
\lim_{z\to 0} \frac{\sin z}{z} = 1
2K
\lim_{φ\to 0} \frac{\sin φ}{φ} = 1
det| 9 4 ; 1 10 | = 86
174K
\lim_{r\to 0} \frac{\sin r}{r} = 1
61K
∇²x = 0
det| 1 4 ; 0 2 | = 2
380K
∑_{k=1}^{n} k = n(n+1)/2
335K
det| 12 3 ; 4 13 | = 144
119K
\binom{n}{k} = \frac{n!}{k!(n-k)!}
472K