Field Notes / Σ /sym/b26508
id=1 · host=uk.mattivster.me · 2026-10-18 17:28Z
∫₀^∞ e^(-φ²) dφ = √π / 2
∑_{k=1}^{n} k = n(n+1)/2
320K
det| 1 9 ; 5 2 | = -43
det| 7 3 ; 6 8 | = 38
438K
AgNO₃ + NaCl → AgCl↓ + NaNO₃
H₂SO₄ + 2NaOH → Na₂SO₄ + 2H₂O
394K
\oint_C \vec{F}\cdot d\vec{r} = 0
det| 7 4 ; 4 8 | = 40
211K
det| 11 9 ; 1 12 | = 123
det| 1 2 ; 7 2 | = -12
69K
2n² + 5n + 6 = 0