Field Notes / Σ /sym/b26508
id=1 · host=uk.mattivster.me · 2026-10-19 03:20Z
\frac{1}{3} \sum_{i=1}^{n} i^{2}
∑_{k=1}^{n} k = n(n+1)/2
H₂SO₄ + 2NaOH → Na₂SO₄ + 2H₂O
87K
∫₀^∞ e^(-φ²) dφ = √π / 2
2K
\lim_{φ\to 0} \frac{\sin φ}{φ} = 1
∑_{k=1}^{n} k = n(n+1)/2
174K
H₂SO₄ + 2NaOH → Na₂SO₄ + 2H₂O
61K
∇²x = 0
\oint_C \vec{F}\cdot d\vec{r} = 0
380K
det| 2 4 ; 4 3 | = -10
472K