Field Notes / Σ /sym/b26508
id=1 · host=uk.mattivster.me · 2026-10-19 03:19Z
\frac{1}{3} \sum_{i=1}^{n} i^{2}
det| 9 4 ; 1 10 | = 86
222K
∑_{k=1}^{n} k = n(n+1)/2
\lim_{φ\to 0} \frac{\sin φ}{φ} = 1
\lim_{r\to 0} \frac{\sin r}{r} = 1
174K
\frac{2}{2} \sum_{i=1}^{n} i^{2}
61K
∇²x = 0
det| 11 4 ; 5 12 | = 112
335K
Fe₂O₃ + 3CO → 2Fe + 3CO₂
∇ × E = −∂B/∂t
E = mc²