Field Notes / Σ /sym/b26508
id=1 · host=uk.mattivster.me · 2026-10-19 03:23Z
\frac{1}{3} \sum_{i=1}^{n} i^{2}
∫₀^∞ e^(-β²) dβ = √π / 2
66K
∑_{k=1}^{n} k = n(n+1)/2
∑_{k=1}^{n} k = n(n+1)/2
87K
\lim_{φ\to 0} \frac{\sin φ}{φ} = 1
\frac{4}{6} \sum_{i=1}^{n} i^{2}
174K
∇²x = 0
det| 7 7 ; 4 8 | = 28
380K
det| 10 1 ; 6 11 | = 104
335K
Fe₂O₃ + 3CO → 2Fe + 3CO₂
det| 7 4 ; 4 8 | = 40
119K
AgNO₃ + NaCl → AgCl↓ + NaNO₃
472K