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}
\lim_{r\to 0} \frac{\sin r}{r} = 1
66K
\frac{8}{6} \sum_{i=1}^{n} i^{2}
222K
∑_{k=1}^{n} k = n(n+1)/2
det| 9 5 ; 1 10 | = 85
87K
\lim_{φ\to 0} \frac{\sin φ}{φ} = 1
∇²x = 0
det| 12 3 ; 4 13 | = 144
119K