Field Notes / Σ /sym/b26508
id=1 · host=uk.mattivster.me · 2026-10-20 12:29Z
5θ² + 4θ + 7 = 0
det| 5 6 ; 7 6 | = -12
232K
∑_{k=1}^{n} k = n(n+1)/2
det| 1 1 ; 5 2 | = -3
375K
10r² + 3r + 3 = 0
ΔS ≥ 0
∑_{k=1}^{n} k = n(n+1)/2
130K
det| 9 4 ; 1 10 | = 86
336K