Field Notes / Σ /sym/b26508
id=1 · host=uk.mattivster.me · 2026-10-19 03:25Z
\frac{1}{3} \sum_{i=1}^{n} i^{2}
∫₀^∞ e^(-φ²) dφ = √π / 2
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∑_{k=1}^{n} k = n(n+1)/2
\lim_{φ\to 0} \frac{\sin φ}{φ} = 1
\lim_{t\to 0} \frac{\sin t}{t} = 1
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∇²x = 0
\lim_{ω\to 0} \frac{\sin ω}{ω} = 1
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det| 9 4 ; 1 10 | = 86
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