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}
\frac{6}{3} \sum_{i=1}^{n} i^{2}
66K
∑_{k=1}^{n} k = n(n+1)/2
\frac{8}{6} \sum_{i=1}^{n} i^{2}
87K
\lim_{φ\to 0} \frac{\sin φ}{φ} = 1
∇²x = 0
\lim_{r\to 0} \frac{\sin r}{r} = 1
335K
\frac{12}{7} \sum_{i=1}^{n} i^{2}
119K