Field Notes / Σ /sym/b26508
id=1 · host=uk.mattivster.me · 2026-10-20 02:16Z
∇²t = 0
7r² + 4r + 0 = 0
∇²β = 0
∑_{k=1}^{n} k = n(n+1)/2
165K
det| 7 4 ; 4 8 | = 40
372K
\frac{8}{9} \sum_{i=1}^{n} i^{2}
∑_{k=1}^{n} k = n(n+1)/2
130K
8r² + 8r + 0 = 0
\lim_{x\to 0} \frac{\sin x}{x} = 1