Field Notes / Σ /sym/b26508
id=1 · host=uk.mattivster.me · 2026-10-18 17:29Z
∫₀^∞ e^(-φ²) dφ = √π / 2
∑_{k=1}^{n} k = n(n+1)/2
320K
\frac{8}{7} \sum_{i=1}^{n} i^{2}
144K
det| 1 9 ; 5 2 | = -43
det| 7 4 ; 4 8 | = 40
438K
AgNO₃ + NaCl → AgCl↓ + NaNO₃
det| 4 8 ; 3 5 | = -4
394K
\oint_C \vec{F}\cdot d\vec{r} = 0
\frac{11}{6} \sum_{i=1}^{n} i^{2}
94K
det| 9 5 ; 1 10 | = 85
211K
det| 11 9 ; 1 12 | = 123
Fe₂O₃ + 3CO → 2Fe + 3CO₂
390K
7β² + 8β + 2 = 0