Field Notes / Σ /sym/b26508
id=1 · host=uk.mattivster.me · 2026-10-18 20:21Z
E = mc²
∑_{k=1}^{n} k = n(n+1)/2
320K
det| 7 4 ; 4 8 | = 40
144K
2ω² + 4ω + 5 = 0
∑_{k=1}^{n} k = n(n+1)/2
90K
Fe₂O₃ + 3CO → 2Fe + 3CO₂
438K
E = mc²
∑_{k=1}^{n} k = n(n+1)/2
29K
\frac{9}{8} \sum_{i=1}^{n} i^{2}
\oint_C \vec{F}\cdot d\vec{r} = 0
94K
det| 12 3 ; 4 13 | = 144
211K
det| 2 1 ; 2 3 | = 4
AgNO₃ + NaCl → AgCl↓ + NaNO₃
69K
\binom{n}{k} = \frac{n!}{k!(n-k)!}