Field Notes / Σ /sym/b26508
id=1 · host=uk.mattivster.me · 2026-10-03 02:35Z
∑_{k=1}^{n} k = n(n+1)/2
\oint_C \vec{F}\cdot d\vec{r} = 0
AgNO₃ + NaCl → AgCl↓ + NaNO₃
CH₄ + 2O₂ → CO₂ + 2H₂O
73K
\frac{8}{1} \sum_{i=1}^{n} i^{2}
\frac{11}{6} \sum_{i=1}^{n} i^{2}
472K
H₂SO₄ + 2NaOH → Na₂SO₄ + 2H₂O
281K
6ω² + 8ω + 1 = 0
det| 3 5 ; 0 4 | = 12
\binom{n}{k} = \frac{n!}{k!(n-k)!}
det| 4 6 ; 1 5 | = 14