Field Notes / Σ /sym/b26508
id=1 · host=uk.mattivster.me · 2026-10-18 16:52Z
∑_{k=1}^{n} k = n(n+1)/2
∑_{k=1}^{n} k = n(n+1)/2
320K
det| 8 9 ; 3 9 | = 45
det| 9 4 ; 1 10 | = 86
90K
E = mc²
det| 1 2 ; 4 2 | = -6
394K
∑_{k=1}^{n} k = n(n+1)/2
94K
det| 5 6 ; 7 6 | = -12
144K