Field Notes / Σ /sym/b26508
id=1 · host=uk.mattivster.me · 2026-10-20 02:02Z
∇²t = 0
det| 7 1 ; 7 8 | = 49
164K
det| 7 4 ; 4 8 | = 40
232K
7r² + 4r + 0 = 0
∇²β = 0
\frac{8}{9} \sum_{i=1}^{n} i^{2}
∑_{k=1}^{n} k = n(n+1)/2
430K
∑_{k=1}^{n} k = n(n+1)/2
130K
∫₀^∞ e^(-x²) dx = √π / 2
336K