Field Notes / Σ /sym/bcffb1
id=823142 · host=uk.mattivster.me · 2026-08-30 18:45Z
∑_{k=1}^{n} k = n(n+1)/2
\binom{n}{k} = \frac{n!}{k!(n-k)!}
λ = h/p
CH₄ + 2O₂ → CO₂ + 2H₂O
428K
7t² + 6t + 7 = 0
\frac{11}{6} \sum_{i=1}^{n} i^{2}
350K
H₂SO₄ + 2NaOH → Na₂SO₄ + 2H₂O
141K
\lim_{ψ\to 0} \frac{\sin ψ}{ψ} = 1
det| 9 9 ; 2 10 | = 72
det| 7 6 ; 5 8 | = 26
8ψ² + 7ψ + 4 = 0