Field Notes / Σ /sym/3cad98
id=1 · host=formula-vault.cloud · 2026-10-18 23:58Z
d/dn [n^4] = 4n^3
∫₀^∞ e^(-ψ²) dψ = √π / 2
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\lim_{θ\to 0} \frac{\sin θ}{θ} = 1
iħ ∂ψ/∂t = Ĥψ
det| 6 6 ; 5 7 | = 12
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det| 5 6 ; 2 6 | = 18
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∑_{k=1}^{n} k = n(n+1)/2
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