Field Notes / Σ /sym/3cad98
id=1 · host=formula-vault.cloud · 2026-10-19 07:57Z
∑_{k=1}^{n} k = n(n+1)/2
\binom{n}{k} = \frac{n!}{k!(n-k)!}
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\lim_{ω\to 0} \frac{\sin ω}{ω} = 1
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\frac{6}{1} \sum_{i=1}^{n} i^{2}
\oint_C \vec{F}\cdot d\vec{r} = 0
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∂x/∂θ = 8x
det| 7 4 ; 4 8 | = 40
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3φ² + 4φ + 2 = 0
det| 9 5 ; 1 10 | = 85
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\binom{n}{k} = \frac{n!}{k!(n-k)!}
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