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| 12 1 ; 4 13 | = 152
66K
∑_{k=1}^{n} k = n(n+1)/2
\lim_{φ\to 0} \frac{\sin φ}{φ} = 1
∇²x = 0
det| 9 4 ; 1 10 | = 86
380K
det| 7 9 ; 1 8 | = 47
335K