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
222K
∑_{k=1}^{n} k = n(n+1)/2
det| 7 4 ; 4 8 | = 40
87K
\lim_{φ\to 0} \frac{\sin φ}{φ} = 1
det| 9 9 ; 5 10 | = 45
174K
CH₄ + 2O₂ → CO₂ + 2H₂O
61K
∇²x = 0
det| 9 7 ; 3 10 | = 69
380K
det| 4 8 ; 3 5 | = -4
335K
Fe₂O₃ + 3CO → 2Fe + 3CO₂
∇ × E = −∂B/∂t
E = mc²
∇²φ = 0
\lim_{x\to 0} \frac{\sin x}{x} = 1
12z² + 7z + 6 = 0