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}
det| 11 2 ; 5 12 | = 122
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∑_{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
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\oint_C \vec{F}\cdot d\vec{r} = 0
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