Field Notes / Σ /sym/b26508
id=1 · host=uk.mattivster.me · 2026-10-19 03:23Z
\frac{1}{3} \sum_{i=1}^{n} i^{2}
det| 10 2 ; 3 11 | = 104
66K
∑_{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| 7 4 ; 4 8 | = 40
174K
∑_{k=1}^{n} k = n(n+1)/2
61K
∇²x = 0
det| 4 6 ; 0 5 | = 20
335K