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}
det| 5 6 ; 2 6 | = 18
66K
∑_{k=1}^{n} k = n(n+1)/2
\lim_{φ\to 0} \frac{\sin φ}{φ} = 1
\oint_C \vec{F}\cdot d\vec{r} = 0
174K
∇²x = 0
H₂SO₄ + 2NaOH → Na₂SO₄ + 2H₂O
380K
∑_{k=1}^{n} k = n(n+1)/2
335K
\frac{8}{6} \sum_{i=1}^{n} i^{2}
119K
∑_{k=1}^{n} k = n(n+1)/2
472K
det| 7 4 ; 4 8 | = 40
392K
det| 12 3 ; 4 13 | = 144
32K