Field Notes / Σ /sym/b26508
id=1 · host=uk.mattivster.me · 2026-10-18 16:08Z
∑_{k=1}^{n} k = n(n+1)/2
det| 8 9 ; 3 9 | = 45
det| 9 4 ; 1 10 | = 86
90K
E = mc²
det| 10 1 ; 6 11 | = 104
det| 12 9 ; 5 13 | = 111
94K
det| 2 6 ; 5 3 | = -24
det| 1 2 ; 7 2 | = -12
144K
∑_{k=1}^{n} k = n(n+1)/2
352K