Field Notes / Σ /sym/b26508
id=1 · host=uk.mattivster.me · 2026-10-19 03:28Z
\frac{1}{3} \sum_{i=1}^{n} i^{2}
∑_{k=1}^{n} k = n(n+1)/2
det| 9 3 ; 3 10 | = 81
87K
\lim_{φ\to 0} \frac{\sin φ}{φ} = 1
det| 9 4 ; 1 10 | = 86
174K
∇²x = 0
CH₄ + 2O₂ → CO₂ + 2H₂O
335K
Fe₂O₃ + 3CO → 2Fe + 3CO₂
∑_{k=1}^{n} k = n(n+1)/2
119K
∫₀^∞ e^(-φ²) dφ = √π / 2
472K
E = mc²