Field Notes / Σ /sym/b26508
id=1 · host=uk.mattivster.me · 2026-10-19 03:22Z
\frac{1}{3} \sum_{i=1}^{n} i^{2}
AgNO₃ + NaCl → AgCl↓ + NaNO₃
66K
det| 9 5 ; 1 10 | = 85
222K
∑_{k=1}^{n} k = n(n+1)/2
\binom{n}{k} = \frac{n!}{k!(n-k)!}
87K
\lim_{φ\to 0} \frac{\sin φ}{φ} = 1
\frac{12}{7} \sum_{i=1}^{n} i^{2}
61K