Field Notes / Σ /sym/86fd5f
id=769567 · host=uk.mattivster.me · 2026-08-30 18:48Z
∑_{k=1}^{n} k = n(n+1)/2
\lim_{x\to 0} \frac{\sin x}{x} = 1
∑_{k=1}^{n} k = n(n+1)/2
CH₄ + 2O₂ → CO₂ + 2H₂O
428K
5β² + 2β + 4 = 0
\frac{11}{6} \sum_{i=1}^{n} i^{2}
350K
H₂SO₄ + 2NaOH → Na₂SO₄ + 2H₂O
141K
det| 6 6 ; 6 7 | = 6
\binom{n}{k} = \frac{n!}{k!(n-k)!}
det| 6 3 ; 5 7 | = 27
9θ² + 2θ + 1 = 0