Field Notes / Σ /sym/b26508
id=1 · host=uk.mattivster.me · 2026-10-18 16:39Z
∑_{k=1}^{n} k = n(n+1)/2
det| 8 9 ; 3 9 | = 45
det| 1 1 ; 5 2 | = -3
90K
E = mc²
det| 10 1 ; 6 11 | = 104
∑_{k=1}^{n} k = n(n+1)/2
211K
∑_{k=1}^{n} k = n(n+1)/2
390K
det| 9 4 ; 1 10 | = 86
69K