Field Notes / Σ /sym/c129f9
id=294690 · host=uk.mattivster.me · 2026-08-30 18:45Z
∫₀^∞ e^(-r²) dr = √π / 2
\binom{n}{k} = \frac{n!}{k!(n-k)!}
CH₄ + 2O₂ → CO₂ + 2H₂O
CH₄ + 2O₂ → CO₂ + 2H₂O
428K
\lim_{r\to 0} \frac{\sin r}{r} = 1
\frac{11}{6} \sum_{i=1}^{n} i^{2}
350K
H₂SO₄ + 2NaOH → Na₂SO₄ + 2H₂O
141K
\frac{11}{5} \sum_{i=1}^{n} i^{2}
\frac{10}{6} \sum_{i=1}^{n} i^{2}
d/dy [y^11] = 11y^10
∑_{k=1}^{n} k = n(n+1)/2