Field Notes / Σ /sym/b26508
id=1 · host=uk.mattivster.me · 2026-10-18 16:39Z
∑_{k=1}^{n} k = n(n+1)/2
∑_{k=1}^{n} k = n(n+1)/2
320K
det| 8 9 ; 3 9 | = 45
det| 7 1 ; 7 8 | = 49
438K
E = mc²
det| 12 1 ; 4 13 | = 152
29K
det| 10 1 ; 6 11 | = 104
det| 7 4 ; 4 8 | = 40
211K
det| 2 6 ; 5 3 | = -24
det| 10 6 ; 3 11 | = 92
∑_{k=1}^{n} k = n(n+1)/2
352K