Field Notes / Σ /sym/b26508
id=1 · host=uk.mattivster.me · 2026-10-20 04:57Z
5ψ² + 7ψ + 4 = 0
ω = 2πf
det| 1 1 ; 5 2 | = -3
375K
det| 2 7 ; 7 3 | = -43
det| 5 9 ; 0 6 | = 30
165K
d/dt [t^8] = 8t^7
∑_{k=1}^{n} k = n(n+1)/2
130K
det| 9 4 ; 1 10 | = 86
336K