Field Notes / Σ /sym/b26508
id=1 · host=uk.mattivster.me · 2026-10-18 16:48Z
∑_{k=1}^{n} k = n(n+1)/2
∑_{k=1}^{n} k = n(n+1)/2
320K
det| 9 4 ; 1 10 | = 86
144K
det| 8 9 ; 3 9 | = 45
det| 1 2 ; 7 2 | = -12
90K
∑_{k=1}^{n} k = n(n+1)/2
438K
E = mc²
det| 7 1 ; 7 8 | = 49
211K