Field Notes / Σ /sym/b26508
id=1 · host=uk.mattivster.me · 2026-10-18 02:53Z
ΔS ≥ 0
det| 7 8 ; 6 8 | = 8
144K
\frac{1}{2} \sum_{i=1}^{n} i^{2}
det| 7 8 ; 4 8 | = 24
90K
∑_{k=1}^{n} k = n(n+1)/2
9θ² + 4θ + 0 = 0
det| 4 6 ; 4 5 | = -4
94K
det| 6 4 ; 1 7 | = 38
det| 1 2 ; 7 2 | = -12
69K
det| 9 4 ; 1 10 | = 86
144K
∑_{k=1}^{n} k = n(n+1)/2
352K