Field Notes / Σ /sym/b26508
id=1 · host=uk.mattivster.me · 2026-10-19 03:22Z
\frac{1}{3} \sum_{i=1}^{n} i^{2}
∑_{k=1}^{n} k = n(n+1)/2
66K
∑_{k=1}^{n} k = n(n+1)/2
\frac{11}{6} \sum_{i=1}^{n} i^{2}
2K
\lim_{φ\to 0} \frac{\sin φ}{φ} = 1
\frac{2}{2} \sum_{i=1}^{n} i^{2}
61K
∇²x = 0
CH₄ + 2O₂ → CO₂ + 2H₂O
335K
Fe₂O₃ + 3CO → 2Fe + 3CO₂
det| 7 6 ; 1 8 | = 50
119K
E = mc²
\lim_{x\to 0} \frac{\sin x}{x} = 1
12z² + 7z + 6 = 0