Field Notes / Σ /sym/b26508
id=1 · host=uk.mattivster.me · 2026-10-20 02:01Z
∇²t = 0
7r² + 4r + 0 = 0
det| 7 8 ; 6 8 | = 8
375K
∇²β = 0
∑_{k=1}^{n} k = n(n+1)/2
165K
\frac{8}{9} \sum_{i=1}^{n} i^{2}
det| 9 4 ; 1 10 | = 86
430K
det| 10 2 ; 3 11 | = 104
130K