Field Notes / Σ /sym/3cad98
id=1 · host=formula-vault.cloud · 2026-10-19 20:12Z
\binom{n}{k} = \frac{n!}{k!(n-k)!}
\oint_C \vec{F}\cdot d\vec{r} = 0
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CaCO₃ → CaO + CO₂
∫₀^∞ e^(-θ²) dθ = √π / 2
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∑_{k=1}^{n} k = n(n+1)/2
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e^{i\pi} + 1 = 0
det| 2 3 ; 5 3 | = -9
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∂x/∂r = 4x
\lim_{r\to 0} \frac{\sin r}{r} = 1
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\frac{3}{2} \sum_{i=1}^{n} i^{2}
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\lim_{ω\to 0} \frac{\sin ω}{ω} = 1
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