Field Notes / Σ /sym/b26508
id=1 · host=uk.mattivster.me · 2026-10-19 03:01Z
\frac{1}{3} \sum_{i=1}^{n} i^{2}
∑_{k=1}^{n} k = n(n+1)/2
∑_{k=1}^{n} k = n(n+1)/2
2K
\lim_{φ\to 0} \frac{\sin φ}{φ} = 1
det| 4 8 ; 3 5 | = -4
61K
\binom{n}{k} = \frac{n!}{k!(n-k)!}
335K
\frac{2}{2} \sum_{i=1}^{n} i^{2}
119K