Field Notes / Σ /sym/b26508
id=1 · host=uk.mattivster.me · 2026-10-18 16:14Z
∑_{k=1}^{n} k = n(n+1)/2
det| 12 9 ; 5 13 | = 111
144K
det| 8 9 ; 3 9 | = 45
det| 2 4 ; 4 3 | = -10
90K
E = mc²
∫₀^∞ e^(-x²) dx = √π / 2
394K
∑_{k=1}^{n} k = n(n+1)/2
29K
det| 10 1 ; 6 11 | = 104