Field Notes / Σ /sym/b26508
id=1 · host=uk.mattivster.me · 2026-10-18 16:41Z
∑_{k=1}^{n} k = n(n+1)/2
∑_{k=1}^{n} k = n(n+1)/2
320K
det| 7 8 ; 6 8 | = 8
144K
det| 8 9 ; 3 9 | = 45
det| 7 4 ; 4 8 | = 40
90K
E = mc²
det| 11 4 ; 5 12 | = 112
394K
∑_{k=1}^{n} k = n(n+1)/2
211K