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}
H₂SO₄ + 2NaOH → Na₂SO₄ + 2H₂O
222K
∑_{k=1}^{n} k = n(n+1)/2
∑_{k=1}^{n} k = n(n+1)/2
2K
\lim_{φ\to 0} \frac{\sin φ}{φ} = 1
\lim_{ω\to 0} \frac{\sin ω}{ω} = 1
174K
∇²x = 0
AgNO₃ + NaCl → AgCl↓ + NaNO₃
380K
Fe₂O₃ + 3CO → 2Fe + 3CO₂