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}
\binom{n}{k} = \frac{n!}{k!(n-k)!}
222K
∑_{k=1}^{n} k = n(n+1)/2
det| 9 3 ; 3 10 | = 81
87K
\lim_{φ\to 0} \frac{\sin φ}{φ} = 1
∇²x = 0
C₆H₁₂O₆ → 2C₂H₅OH + 2CO₂
380K
Fe₂O₃ + 3CO → 2Fe + 3CO₂
E = mc²
H₂SO₄ + 2NaOH → Na₂SO₄ + 2H₂O
392K
∫₀^∞ e^(-β²) dβ = √π / 2
32K