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}
∑_{k=1}^{n} k = n(n+1)/2
\lim_{φ\to 0} \frac{\sin φ}{φ} = 1
∫₀^∞ e^(-φ²) dφ = √π / 2
174K
H₂SO₄ + 2NaOH → Na₂SO₄ + 2H₂O
61K
∇²x = 0
AgNO₃ + NaCl → AgCl↓ + NaNO₃
380K
Fe₂O₃ + 3CO → 2Fe + 3CO₂
Fe₂O₃ + 3CO → 2Fe + 3CO₂
472K
E = mc²
∇²φ = 0
\lim_{x\to 0} \frac{\sin x}{x} = 1
12z² + 7z + 6 = 0