Field Notes / Σ /sym/3cad98
id=1 · host=formula-vault.cloud · 2026-10-18 23:05Z
d/dn [n^4] = 4n^3
\oint_C \vec{F}\cdot d\vec{r} = 0
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\lim_{θ\to 0} \frac{\sin θ}{θ} = 1
iħ ∂ψ/∂t = Ĥψ
\lim_{t\to 0} \frac{\sin t}{t} = 1
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\frac{2}{4} \sum_{i=1}^{n} i^{2}
det| 12 9 ; 5 13 | = 111
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det| 5 7 ; 5 6 | = -5
det| 4 8 ; 3 5 | = -4
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Fe₂O₃ + 3CO → 2Fe + 3CO₂
\binom{n}{k} = \frac{n!}{k!(n-k)!}
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2r² + 6r + 7 = 0
5θ² + 9θ + 7 = 0