Field Notes / Σ /sym/b26508
id=1 · host=uk.mattivster.me · 2026-10-19 17:50Z
11x² + 3x + 4 = 0
det| 9 4 ; 1 10 | = 86
66K
∑_{k=1}^{n} k = n(n+1)/2
222K
ω = 2πf
det| 1 1 ; 5 2 | = -3
87K
\binom{n}{k} = \frac{n!}{k!(n-k)!}
det| 7 3 ; 6 8 | = 38
174K
AgNO₃ + NaCl → AgCl↓ + NaNO₃