Field Notes / Σ /sym/3cad98
id=1 · host=formula-vault.cloud · 2026-10-19 18:20Z
ΔS ≥ 0
det| 3 6 ; 0 4 | = 12
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\oint_C \vec{F}\cdot d\vec{r} = 0
\lim_{x\to 0} \frac{\sin x}{x} = 1
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d/dθ [θ^4] = 4θ^3
det| 7 4 ; 4 8 | = 40
339K
\binom{n}{k} = \frac{n!}{k!(n-k)!}
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det| 5 5 ; 7 6 | = -5
det| 3 1 ; 7 4 | = 5
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\oint_C \vec{F}\cdot d\vec{r} = 0
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\oint_C \vec{F}\cdot d\vec{r} = 0
∑_{k=1}^{n} k = n(n+1)/2
399K
∫₀^∞ e^(-ω²) dω = √π / 2