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
det| 4 8 ; 3 5 | = -4
174K
\frac{8}{7} \sum_{i=1}^{n} i^{2}
61K
∇²x = 0
\lim_{β\to 0} \frac{\sin β}{β} = 1
380K
H₂SO₄ + 2NaOH → Na₂SO₄ + 2H₂O
335K
Fe₂O₃ + 3CO → 2Fe + 3CO₂
∇ × E = −∂B/∂t
E = mc²
∇²φ = 0