Field Notes / Σ /sym/b26508
id=1 · host=uk.mattivster.me · 2026-10-19 03:23Z
\frac{1}{3} \sum_{i=1}^{n} i^{2}
\frac{11}{6} \sum_{i=1}^{n} i^{2}
66K
∑_{k=1}^{n} k = n(n+1)/2
∑_{k=1}^{n} k = n(n+1)/2
87K
\binom{n}{k} = \frac{n!}{k!(n-k)!}
2K
\lim_{φ\to 0} \frac{\sin φ}{φ} = 1
CH₄ + 2O₂ → CO₂ + 2H₂O
61K
∇²x = 0
CH₄ + 2O₂ → CO₂ + 2H₂O
335K
Fe₂O₃ + 3CO → 2Fe + 3CO₂
det| 9 4 ; 1 10 | = 86
472K
E = mc²
∑_{k=1}^{n} k = n(n+1)/2
32K
\lim_{x\to 0} \frac{\sin x}{x} = 1