Field Notes / Σ /sym/b26508
id=1 · host=uk.mattivster.me · 2026-10-18 02:42Z
ΔS ≥ 0
∫₀^∞ e^(-φ²) dφ = √π / 2
320K
∑_{k=1}^{n} k = n(n+1)/2
144K
\frac{1}{2} \sum_{i=1}^{n} i^{2}
∑_{k=1}^{n} k = n(n+1)/2
det| 9 5 ; 1 10 | = 85
94K
∑_{k=1}^{n} k = n(n+1)/2
390K
det| 7 4 ; 4 8 | = 40
69K