Field Notes / Σ /sym/b26508
id=1 · host=uk.mattivster.me · 2026-10-18 12:16Z
\binom{n}{k} = \frac{n!}{k!(n-k)!}
∇²ω = 0
\oint_C \vec{F}\cdot d\vec{r} = 0
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det| 5 5 ; 6 6 | = 0
∫₀^∞ e^(-r²) dr = √π / 2
∫₀^∞ e^(-α²) dα = √π / 2
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\binom{n}{k} = \frac{n!}{k!(n-k)!}
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det| 5 3 ; 2 6 | = 24
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det| 5 2 ; 6 6 | = 18
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∑_{k=1}^{n} k = n(n+1)/2
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H₂SO₄ + 2NaOH → Na₂SO₄ + 2H₂O
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\lim_{γ\to 0} \frac{\sin γ}{γ} = 1
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