Field Notes / Σ /sym/b26508
id=1 · host=uk.mattivster.me · 2026-10-18 21:07Z
AgNO₃ + NaCl → AgCl↓ + NaNO₃
det| 12 1 ; 5 13 | = 151
144K
det| 4 7 ; 0 5 | = 20
∑_{k=1}^{n} k = n(n+1)/2
\binom{n}{k} = \frac{n!}{k!(n-k)!}
∫₀^∞ e^(-φ²) dφ = √π / 2
211K
∑_{k=1}^{n} k = n(n+1)/2
69K