Field Notes / Σ /sym/b26508
id=1 · host=uk.mattivster.me · 2026-10-20 02:02Z
∇²t = 0
det| 4 8 ; 3 5 | = -4
164K
det| 7 4 ; 4 8 | = 40
232K
7r² + 4r + 0 = 0
∑_{k=1}^{n} k = n(n+1)/2
47K
∇²β = 0
∑_{k=1}^{n} k = n(n+1)/2
372K
∫₀^∞ e^(-φ²) dφ = √π / 2
130K