Field Notes / Σ /sym/b26508
id=1 · host=uk.mattivster.me · 2026-10-18 21:22Z
AgNO₃ + NaCl → AgCl↓ + NaNO₃
\frac{8}{6} \sum_{i=1}^{n} i^{2}
320K
\lim_{β\to 0} \frac{\sin β}{β} = 1
144K
det| 4 7 ; 0 5 | = 20
\frac{6}{7} \sum_{i=1}^{n} i^{2}
438K
∑_{k=1}^{n} k = n(n+1)/2
∑_{k=1}^{n} k = n(n+1)/2
29K
\binom{n}{k} = \frac{n!}{k!(n-k)!}