Field Notes / Σ /sym/b26508
id=1 · host=uk.mattivster.me · 2026-10-19 03:01Z
\frac{1}{3} \sum_{i=1}^{n} i^{2}
∑_{k=1}^{n} k = n(n+1)/2
\lim_{φ\to 0} \frac{\sin φ}{φ} = 1
\lim_{ω\to 0} \frac{\sin ω}{ω} = 1
61K
det| 4 6 ; 0 5 | = 20
380K
det| 9 4 ; 1 10 | = 86
335K
∫₀^∞ e^(-t²) dt = √π / 2
472K
∑_{k=1}^{n} k = n(n+1)/2
392K
\lim_{r\to 0} \frac{\sin r}{r} = 1
32K