Field Notes / Σ /sym/b26508
id=1 · host=uk.mattivster.me · 2026-10-19 03:23Z
\frac{1}{3} \sum_{i=1}^{n} i^{2}
∑_{k=1}^{n} k = n(n+1)/2
66K
∑_{k=1}^{n} k = n(n+1)/2
det| 9 4 ; 1 10 | = 86
87K
\lim_{φ\to 0} \frac{\sin φ}{φ} = 1
∫₀^∞ e^(-φ²) dφ = √π / 2
174K
∇²x = 0
AgNO₃ + NaCl → AgCl↓ + NaNO₃
380K
∑_{k=1}^{n} k = n(n+1)/2
335K
Fe₂O₃ + 3CO → 2Fe + 3CO₂
det| 4 6 ; 4 5 | = -4
472K
E = mc²
∇²φ = 0
\lim_{x\to 0} \frac{\sin x}{x} = 1
12z² + 7z + 6 = 0