Field Notes / Σ /sym/b26508
id=1 · host=uk.mattivster.me · 2026-10-18 17:52Z
∫₀^∞ e^(-φ²) dφ = √π / 2
det| 7 4 ; 4 8 | = 40
144K
det| 1 9 ; 5 2 | = -43
det| 2 7 ; 7 3 | = -43
438K
AgNO₃ + NaCl → AgCl↓ + NaNO₃
det| 1 2 ; 4 2 | = -6
394K
det| 4 6 ; 0 5 | = 20
29K
∑_{k=1}^{n} k = n(n+1)/2
390K
∑_{k=1}^{n} k = n(n+1)/2
69K