Field Notes / Σ /sym/b26508
id=1 · host=uk.mattivster.me · 2026-10-19 03:21Z
\frac{1}{3} \sum_{i=1}^{n} i^{2}
∑_{k=1}^{n} k = n(n+1)/2
det| 1 1 ; 5 2 | = -3
87K
det| 12 3 ; 4 13 | = 144
2K
\lim_{φ\to 0} \frac{\sin φ}{φ} = 1
det| 5 6 ; 4 6 | = 6
174K
\binom{n}{k} = \frac{n!}{k!(n-k)!}
61K
∇²x = 0
det| 4 6 ; 0 5 | = 20
380K
\frac{12}{6} \sum_{i=1}^{n} i^{2}
119K