Field Notes / Σ /sym/b26508
id=1 · host=uk.mattivster.me · 2026-10-18 02:41Z
ΔS ≥ 0
det| 1 4 ; 2 2 | = -6
320K
\frac{1}{2} \sum_{i=1}^{n} i^{2}
∑_{k=1}^{n} k = n(n+1)/2
438K
∑_{k=1}^{n} k = n(n+1)/2
9θ² + 4θ + 0 = 0
∑_{k=1}^{n} k = n(n+1)/2
94K
det| 6 4 ; 1 7 | = 38
det| 9 4 ; 1 10 | = 86
390K