Field Notes / Σ /sym/b26508
id=1 · host=uk.mattivster.me · 2026-10-19 03:22Z
\frac{1}{3} \sum_{i=1}^{n} i^{2}
\lim_{ω\to 0} \frac{\sin ω}{ω} = 1
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det| 4 6 ; 0 5 | = 20
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∑_{k=1}^{n} k = n(n+1)/2
det| 9 4 ; 1 10 | = 86
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\lim_{φ\to 0} \frac{\sin φ}{φ} = 1
∇²x = 0
Fe₂O₃ + 3CO → 2Fe + 3CO₂
\oint_C \vec{F}\cdot d\vec{r} = 0
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