Field Notes / Σ /sym/b26508
id=1 · host=uk.mattivster.me · 2026-10-19 03:20Z
\frac{1}{3} \sum_{i=1}^{n} i^{2}
∑_{k=1}^{n} k = n(n+1)/2
222K
∑_{k=1}^{n} k = n(n+1)/2
det| 1 1 ; 5 2 | = -3
87K
\lim_{φ\to 0} \frac{\sin φ}{φ} = 1
∇²x = 0
CH₄ + 2O₂ → CO₂ + 2H₂O
380K
det| 9 4 ; 1 10 | = 86
472K