Field Notes / Σ /sym/b26508
id=1 · host=uk.mattivster.me · 2026-10-19 03:19Z
\frac{1}{3} \sum_{i=1}^{n} i^{2}
\oint_C \vec{F}\cdot d\vec{r} = 0
66K
\frac{12}{7} \sum_{i=1}^{n} i^{2}
222K
∑_{k=1}^{n} k = n(n+1)/2
det| 12 9 ; 5 13 | = 111
2K
\lim_{φ\to 0} \frac{\sin φ}{φ} = 1
∇²x = 0
det| 11 9 ; 0 12 | = 132
335K
Fe₂O₃ + 3CO → 2Fe + 3CO₂