Field Notes / Σ /sym/b26508
id=1 · host=uk.mattivster.me · 2026-10-18 00:21Z
∑_{k=1}^{n} k = n(n+1)/2
\lim_{α\to 0} \frac{\sin α}{α} = 1
320K
\oint_C \vec{F}\cdot d\vec{r} = 0
∫₀^∞ e^(-γ²) dγ = √π / 2
90K
\lim_{r\to 0} \frac{\sin r}{r} = 1
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H₂SO₄ + 2NaOH → Na₂SO₄ + 2H₂O
det| 9 5 ; 4 10 | = 70
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7z² + 2z + 5 = 0
\binom{n}{k} = \frac{n!}{k!(n-k)!}
∑_{k=1}^{n} k = n(n+1)/2
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\oint_C \vec{F}\cdot d\vec{r} = 0
110K