Field Notes / Σ /sym/b26508
id=1 · host=uk.mattivster.me · 2026-10-20 02:01Z
∇²t = 0
∫₀^∞ e^(-t²) dt = √π / 2
164K
7r² + 4r + 0 = 0
det| 1 2 ; 7 2 | = -12
375K
∇²β = 0
∑_{k=1}^{n} k = n(n+1)/2
372K
\frac{8}{9} \sum_{i=1}^{n} i^{2}
8r² + 8r + 0 = 0
\lim_{x\to 0} \frac{\sin x}{x} = 1
det| 4 1 ; 3 5 | = 17
det| 4 5 ; 5 5 | = -5