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
\lim_{φ\to 0} \frac{\sin φ}{φ} = 1
\frac{8}{6} \sum_{i=1}^{n} i^{2}
61K
∇²x = 0
CH₄ + 2O₂ → CO₂ + 2H₂O
335K
Fe₂O₃ + 3CO → 2Fe + 3CO₂
det| 5 6 ; 2 6 | = 18
119K
det| 9 4 ; 1 10 | = 86
472K
E = mc²
H₂SO₄ + 2NaOH → Na₂SO₄ + 2H₂O
32K
\lim_{x\to 0} \frac{\sin x}{x} = 1
12z² + 7z + 6 = 0