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}
\lim_{t\to 0} \frac{\sin t}{t} = 1
66K
Fe₂O₃ + 3CO → 2Fe + 3CO₂
222K
∑_{k=1}^{n} k = n(n+1)/2
\lim_{φ\to 0} \frac{\sin φ}{φ} = 1
\frac{8}{7} \sum_{i=1}^{n} i^{2}
61K
∇²x = 0
\frac{12}{6} \sum_{i=1}^{n} i^{2}
335K
Fe₂O₃ + 3CO → 2Fe + 3CO₂
∇ × E = −∂B/∂t
E = mc²
∇²φ = 0