Field Notes / Σ /sym/b26508
id=1 · host=uk.mattivster.me · 2026-10-19 03:00Z
\frac{1}{3} \sum_{i=1}^{n} i^{2}
\frac{12}{7} \sum_{i=1}^{n} i^{2}
66K
det| 7 4 ; 4 8 | = 40
222K
∑_{k=1}^{n} k = n(n+1)/2
\frac{11}{6} \sum_{i=1}^{n} i^{2}
87K
\lim_{φ\to 0} \frac{\sin φ}{φ} = 1
det| 10 7 ; 3 11 | = 89
61K
∇²x = 0
det| 5 6 ; 7 6 | = -12
335K
Fe₂O₃ + 3CO → 2Fe + 3CO₂
∇ × E = −∂B/∂t
E = mc²