Field Notes / Σ /sym/b26508
id=1 · host=uk.mattivster.me · 2026-10-18 21:00Z
AgNO₃ + NaCl → AgCl↓ + NaNO₃
∑_{k=1}^{n} k = n(n+1)/2
320K
det| 4 7 ; 0 5 | = 20
\frac{2}{2} \sum_{i=1}^{n} i^{2}
90K
∑_{k=1}^{n} k = n(n+1)/2
det| 9 4 ; 1 10 | = 86
29K
\binom{n}{k} = \frac{n!}{k!(n-k)!}
\lim_{t\to 0} \frac{\sin t}{t} = 1
94K
\frac{8}{7} \sum_{i=1}^{n} i^{2}
211K