Field Notes / Σ /sym/b26508
id=1 · host=uk.mattivster.me · 2026-10-20 04:02Z
5ψ² + 7ψ + 4 = 0
ω = 2πf
det| 7 2 ; 7 8 | = 42
47K
det| 2 7 ; 7 3 | = -43
∑_{k=1}^{n} k = n(n+1)/2
165K
∑_{k=1}^{n} k = n(n+1)/2
430K
det| 11 9 ; 0 12 | = 132
455K
det| 7 4 ; 4 8 | = 40
215K