Field Notes / Σ /sym/3cad98
id=1 · host=formula-vault.cloud · 2026-10-18 23:20Z
d/dn [n^4] = 4n^3
det| 3 7 ; 2 4 | = -2
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det| 5 3 ; 7 6 | = 9
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\lim_{θ\to 0} \frac{\sin θ}{θ} = 1
det| 7 4 ; 4 8 | = 40
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iħ ∂ψ/∂t = Ĥψ
Fe₂O₃ + 3CO → 2Fe + 3CO₂
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∑_{k=1}^{n} k = n(n+1)/2
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∫₀^∞ e^(-t²) dt = √π / 2
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