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| 9 4 ; 1 10 | = 86
87K
\lim_{φ\to 0} \frac{\sin φ}{φ} = 1
det| 1 2 ; 4 2 | = -6
174K
\lim_{ω\to 0} \frac{\sin ω}{ω} = 1
380K
\frac{11}{6} \sum_{i=1}^{n} i^{2}
335K