Field Notes / Σ /sym/b26508
id=1 · host=uk.mattivster.me · 2026-10-18 17:30Z
∫₀^∞ e^(-φ²) dφ = √π / 2
∫₀^∞ e^(-φ²) dφ = √π / 2
320K
∑_{k=1}^{n} k = n(n+1)/2
144K
det| 1 9 ; 5 2 | = -43
det| 9 4 ; 1 10 | = 86
90K
AgNO₃ + NaCl → AgCl↓ + NaNO₃
∑_{k=1}^{n} k = n(n+1)/2
69K