Field Notes / Σ /sym/b26508
id=1 · host=uk.mattivster.me · 2026-10-19 03:21Z
\frac{1}{3} \sum_{i=1}^{n} i^{2}
∑_{k=1}^{n} k = n(n+1)/2
\lim_{φ\to 0} \frac{\sin φ}{φ} = 1
det| 7 9 ; 1 8 | = 47
174K
det| 5 6 ; 2 6 | = 18
61K
∇²x = 0
Fe₂O₃ + 3CO → 2Fe + 3CO₂
E = mc²
det| 11 4 ; 5 12 | = 112
32K
\lim_{x\to 0} \frac{\sin x}{x} = 1